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A047763 A047762(2n+1). 1
0, 0, 1, 6, 32, 176, 952, 5302, 29960, 172536, 1007575, 5959656, 35622384, 214875104, 1306303424, 7995896502, 49236826080, 304799714960, 1895785216039, 11841367945110, 74245791718824, 467136323951040, 2948374926743584 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 11 04:03 EDT 2020. Contains 336421 sequences. (Running on oeis4.)