A089538 A085747 indexed by A000040.

2, 1, 2, 0, 0, 0, 0, 0, 3, 0, 2, 7, 0, 0, 4, 1, 2, 9, 0, 0, 5, 10, 2, 0, 0, 0, 12, 0, 13, 1, 8, 5, 5, 0, 4, 2, 13, 0, 6, 31, 15, 17, 1, 12, 3, 12, 17, 0, 1, 21, 17, 22, 21, 0, 0, 18, 0, 12, 0, 18, 11, 12, 14, 4, 23, 20, 8, 4, 27, 8, 0, 28, 12, 39, 0, 27, 2, 21, 29, 25

Offset

1,1

Links

Table of n, a(n) for n=1..80.

Formula

a(n)=k such that A085747(n)=A000040(k) if A085747(n) is prime, otherwise 0.

Crossrefs

Cf. A085747, A089539, A089540, A089541.

Sequence in context: A178473 A164810 A322392 * A152439 A070965 A079548

Adjacent sequences: A089535 A089536 A089537 * A089539 A089540 A089541

Keyword

nonn

Author

Ray Chandler, Nov 09 2003

Extensions

More terms from Max Alekseyev, Jun 17 2011

Status

approved