This site is supported by donations to The OEIS Foundation.

# User contributions

From OeisWiki

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

- 01:06, 23 February 2018
(diff | hist) . .
**(+2,933)** . . 46 (Starting to flesh out, with some placeholders) (current) - 00:28, 23 February 2018 (diff | hist) . . (+125) . . 46 (Added tidbit from "What's Special About This Number?")
- 00:42, 20 February 2018 (diff | hist) . . (-17) . . m Sieve of Eratosthenes (Revealed link Bill added) (current)
- 00:13, 20 February 2018 (diff | hist) . . (+204) . . Talk:Wolfram Alpha (→Direct OEIS reporting: Replied to Bill) (current)
- 23:01, 17 February 2018 (diff | hist) . . (+322) . . 34 (→Membership in core sequences: More core sequences) (current)
- 22:40, 17 February 2018
(diff | hist) . .
**(+2,399)** . . N 34 (Created page with "{{Under construction}} '''34''' is an integer. ==Membership in core sequences== {| class="wikitable" border="1" cellspacing="0" cellpadding="4" style="border-collapse: colla...") - 22:17, 17 February 2018 (diff | hist) . . (+295) . . N Talk:Circular primes (Created page with "Haven't yet had time to look through the crossrefs in the section below. - ~~~~ ==Sequences== A016114, A068652, A173818, A293142, A293657, A293658, A293659, A293660, A293661,...") (current)
- 22:16, 17 February 2018 (diff | hist) . . (-113) . . Circular primes (Moving a section to talk) (current)
- 22:12, 17 February 2018
(diff | hist) . .
**(+3,626)** . . Circular primes (Added table of circular primes in bases from binary to vigesimal) - 00:00, 14 February 2018 (diff | hist) . . (-173) . . 28 (Removed section about Z[sqrt(28)], Z[sqrt(-28)]) (current)
- 01:25, 11 February 2018 (diff | hist) . . (+238) . . 22 (→Logarithms and 22nd powers: Filled in remarks, maybe table in the morning) (current)
- 00:04, 11 February 2018 (diff | hist) . . (+145) . . 22 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −22, 22: Filled both tables in a little bit more)
- 21:38, 10 February 2018 (diff | hist) . . (+135) . . Units (→Units in quadratic integer rings: Not sure why I skipped over 30, 31, 32, but here they go) (current)
- 00:14, 10 February 2018 (diff | hist) . . (-17) . . m 20 (→Core sequences modulo 20: Removed remarks placeholder) (current)
- 19:21, 9 February 2018
(diff | hist) . .
**(+831)** . . 20 (→Core sequences modulo 20: Starting to fill in table) - 19:03, 9 February 2018 (diff | hist) . . (+64) . . 20 (Added placeholder for new section)
- 01:25, 5 February 2018 (diff | hist) . . (+12) . . m Irreducible elements (→Irreducible but not prime: Filled in a missing word) (current)
- 23:24, 4 February 2018 (diff | hist) . . (+275) . . Talk:10 (→Roots and powers: Replied to Frank)
- 19:24, 4 February 2018
(diff | hist) . .
**(+875)** . . 10 (→Core sequences modulo 10: Starting to fill in section) - 19:05, 4 February 2018 (diff | hist) . . (+64) . . 10 (Added placeholder for new section)
- 21:13, 3 February 2018 (diff | hist) . . (-8) . . m 8 (→Membership in core sequences: Unlinked cubes and Fibonacci numbers because they're already linked in lead line) (current)
- 21:12, 3 February 2018 (diff | hist) . . (+4) . . m 8 (Linked cube)
- 00:40, 3 February 2018 (diff | hist) . . (+106) . . 6 (→Sequences pertaining to 6: Added the primes with primitive root 6 (A019336)) (current)
- 23:00, 1 February 2018 (diff | hist) . . (+205) . . Fundamental theorem of arithmetic (Linking PARI/GP, plus various other improvements) (current)
- 02:30, 1 February 2018 (diff | hist) . . (-6) . . Circular primes (Oops, meant "absolute" not merely "permutable")
- 02:29, 1 February 2018
(diff | hist) . .
**(+706)** . . Circular primes (Elaborated a little more) - 21:01, 31 January 2018 (diff | hist) . . (+35) . . Circular primes (Starting to elaborate)
- 23:19, 30 January 2018 (diff | hist) . . (-25) . . m 30 (→Sequences pertaining to 30: Tweaked row lengths) (current)
- 23:13, 30 January 2018 (diff | hist) . . (+137) . . 30 (→Sequences pertaining to 30: Added the primes with primitive root 30 (A019356))
- 20:24, 30 January 2018 (diff | hist) . . (+97) . . 31 (→Sequences pertaining to 31: Added the primes with primitive root 31 (A019357)) (current)
- 22:01, 28 January 2018 (diff | hist) . . (+103) . . 29 (→Sequences pertaining to 29: Added the primes w/primitive root 29 (A019355)) (current)
- 20:55, 28 January 2018 (diff | hist) . . (+4) . . m 29 (→Factorization of some small integers in a quadratic integer ring adjoining square roots of −29, 29: Linked unique factorization domain)
- 11:47, 27 January 2018 (diff | hist) . . (+230) . . Talk:Euler's totient function (→Function call out in various languages seen in OEIS: Replied to Bill) (current)
- 20:56, 22 January 2018 (diff | hist) . . (-6) . . m 23 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −23, 23: In the ideals table, maybe it's better to join cells by row rather than column) (current)
- 19:47, 21 January 2018 (diff | hist) . . (+105) . . 22 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −22, 22: 17 is prime in Z[sqrt(-22)] but 19 is irreducible)
- 19:42, 21 January 2018 (diff | hist) . . (-8) . . 22 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −22, 22: Joined cells a bit differently in ideals table)
- 22:00, 19 January 2018 (diff | hist) . . (+19) . . m 20 (→Values for number theoretic functions with 20 as an argument: A few more places for zeta(20))
- 20:18, 17 January 2018 (diff | hist) . . (-15) . . m 18 (→Representation of 18 in various bases: Uncentered table) (current)
- 20:14, 17 January 2018 (diff | hist) . . (-46) . . 18 (→Partitions of 18: Added the Goldbach representations)
- 20:12, 17 January 2018 (diff | hist) . . (+125) . . 18 (→Sequences pertaining to 18: Added 3x - 1 seq. start at 36 (A008894))
- 21:20, 16 January 2018 (diff | hist) . . (+38) . . 17 (Added tidbit from "What's Special About This Number?") (current)
- 23:37, 15 January 2018
(diff | hist) . .
**(+1,280)** . . 15 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −15, 15: Starting to fill in table of ideals) (current) - 19:02, 15 January 2018 (diff | hist) . . (+9) . . m 16 (→Sequences pertaining to 16: Tweaked length of last row) (current)
- 19:00, 15 January 2018 (diff | hist) . . (+45) . . m 16 (→Factorization of 16 in some quadratic integer rings: Note about the factorization of 2 in Z[sqrt(-2)] moved out of table)
- 20:53, 14 January 2018 (diff | hist) . . (+83) . . 15 (→Partitions of 15: Added the Goldbach representations using distinct primes)
- 21:59, 12 January 2018 (diff | hist) . . (+71) . . 13 (→Representation of 13 in various bases: Remark on palindromicity) (current)
- 22:57, 9 January 2018 (diff | hist) . . (+168) . . 10 (→Factorization of some small integers in a quadratic integer ring adjoining the square roots of −10, 10: Filled in last three rows of ideals table in the Z[sqrt(-10)] column)
- 22:33, 9 January 2018 (diff | hist) . . (-10) . . m 10 (→Sequences pertaining to 10: Trimmed the last two rows)
- 21:00, 8 January 2018 (diff | hist) . . (+105) . . 9 (→Sequences pertaining to 9: Added 3x - 1 seq. starting at 36 (A008894)) (current)
- 20:57, 8 January 2018 (diff | hist) . . (+82) . . 9 (→Partitions of 29: Added the Goldbach representations using distinct primes)

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)