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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 (list; graph; refs; listen; history; text; internal format)
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: A274004 A196592 A120180 * 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 December 10 12:30 EST 2019. Contains 329895 sequences. (Running on oeis4.)