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A068323 a(n)=number of arithmetic progressions of primes, nondecreasing with sum n. 0
0, 1, 1, 1, 2, 2, 2, 2, 2, 3, 1, 3, 2, 3, 4, 3, 1, 4, 2, 4, 4, 4, 1, 5, 2, 4, 1, 4, 1, 6, 2, 3, 5, 5, 2, 6, 1, 3, 5, 5, 1, 7, 2, 5, 3, 5, 1, 7, 2, 6, 5, 5, 1, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..54.

CROSSREFS

Sequence in context: A323275 A139514 A190617 * A054990 A046921 A262954

Adjacent sequences:  A068320 A068321 A068322 * A068324 A068325 A068326

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto, Feb 27 2002

STATUS

approved

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Last modified July 18 21:25 EDT 2019. Contains 325144 sequences. (Running on oeis4.)