A045840 a(n) = A005926(n)/2.

0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6

Offset

0,20

Links

Antti Karttunen, Table of n, a(n) for n = 0..387 (computed from b-file of A005926 provided by Herman Jamke)

Crossrefs

Cf. A005926.

Sequence in context: A319625 A307802 A169585 * A181000 A335453 A061853

Adjacent sequences: A045837 A045838 A045839 * A045841 A045842 A045843

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms (computed from those of A005926) by Antti Karttunen, Jul 24 2017

Status

approved