A039738 - OEIS

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A039738

a(n)=number of primes q<p having (p mod q)=4, where p=n-th prime.

0

0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 1, 1

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OFFSET

1,17

LINKS

Table of n, a(n) for n=1..90.

CROSSREFS

Sequence in context: A284558 A294623 A337473 * A191515 A320001 A168201

Adjacent sequences: A039735 A039736 A039737 * A039739 A039740 A039741

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved