A216510 Number of positive integer solutions to the equation a^2 + 6*b^2 = n.

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

Offset

1,55

Links

Table of n, a(n) for n=1..87.

Crossrefs

Cf. A155716.

Sequence in context: A030199 A320005 A325414 * A005089 A364127 A340999

Adjacent sequences: A216507 A216508 A216509 * A216511 A216512 A216513

Keyword

nonn

Author

V. Raman, Sep 08 2012

Status

approved