A047763 a(n) = A047762(2n+1).

0, 0, 1, 6, 32, 176, 952, 5302, 29960, 172536, 1007575, 5959656, 35622384, 214875104, 1306303424, 7995896502, 49236826080, 304799714960, 1895785216039, 11841367945110, 74245791718824, 467136323951040, 2948374926743584

Offset

0,4

Links

Table of n, a(n) for n=0..22.

Crossrefs

Sequence in context: A180037 A277742 A000558 * A259621 A026993 A238115

Adjacent sequences: A047760 A047761 A047762 * A047764 A047765 A047766

Keyword

nonn

Author

N. J. A. Sloane

Status

approved