login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A181603 Twin primes ending in 1. 3
11, 31, 41, 61, 71, 101, 151, 181, 191, 241, 271, 281, 311, 421, 431, 461, 521, 571, 601, 641, 661, 811, 821, 881, 1021, 1031, 1051, 1061, 1091, 1151, 1231, 1291, 1301, 1321, 1451, 1481, 1621, 1721, 1871, 1931, 1951, 2081, 2111, 2131, 2141, 2311, 2341, 2381 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

O. E. Pol, Determinacion geometrica de los numeros primos y perfectos

MATHEMATICA

Select[Prime@ Range@ 360, Mod[ #, 10] == 1 && (PrimeQ[ # - 2] || PrimeQ[ # + 2]) &] [From Robert G. Wilson v, Nov 06 2010]

CROSSREFS

Cf. A001097, A181604, A181605, A181606.

Sequence in context: A040172 A040160 A040981 * A040983 A040979 A181182

Adjacent sequences:  A181600 A181601 A181602 * A181604 A181605 A181606

KEYWORD

base,nonn

AUTHOR

Omar E. Pol, Nov 01 2010

EXTENSIONS

More terms from Robert G. Wilson v, Nov 06 2010

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 23 22:05 EDT 2013. Contains 225613 sequences.