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A279400
Row lengths of the irregular triangle
A279399
.
2
3, 3, 4, 5, 6, 6, 7, 7, 7, 10, 9, 9, 9, 10, 10, 10, 12, 12, 13, 13, 13, 14, 14, 14, 14, 16, 17, 16, 15, 17, 17, 16, 18, 19, 19, 19, 18, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 23, 23
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OFFSET
1,1
COMMENTS
a(n) is the number of primes of the smallest positive restricted residue system modulo
A033949
(n).
LINKS
Table of n, a(n) for n=1..50.
CROSSREFS
Cf.
A033949
,
A279399
.
Sequence in context:
A196592
A120180
A339412
*
A063197
A327226
A011977
Adjacent sequences:
A279397
A279398
A279399
*
A279401
A279402
A279403
KEYWORD
nonn
AUTHOR
Wolfdieter Lang
, Jan 25 2017
STATUS
approved
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Last modified August 27 21:53 EDT 2024. Contains 375471 sequences. (Running on oeis4.)