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A005088 Number of primes = 1 mod 3 dividing n. +0
4
0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0 (list; graph; listen)
OFFSET

1,1

LINKS

S. R. Finch and Pascal Sebah, Squares and Cubes Modulo n (arXiv: math.NT/0604465).

FORMULA

Additive with a(p^e) = 1 if p = 1 (mod 3), 0 otherwise.

CROSSREFS

Adjacent sequences: A005085 A005086 A005087 this_sequence A005089 A005090 A005091

Sequence in context: A025459 A079365 A037822 this_sequence A011686 A070108 A011675

KEYWORD

nonn

AUTHOR

njas

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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