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A026631 T(2n-1,n-2), T given by A026626. 0
1, 7, 30, 119, 467, 1820, 7076, 27493, 106848, 415538, 1617504, 6302416, 24581249, 95968478, 375029576, 1466881997, 5742440324, 22498218218, 88212326756, 346114729562, 1358944775654, 5338963361408, 20987909276600 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..24.

CROSSREFS

Sequence in context: A085277 A269084 A055269 * A037709 A037611 A171472

Adjacent sequences:  A026628 A026629 A026630 * A026632 A026633 A026634

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 15 21:17 EST 2019. Contains 329151 sequences. (Running on oeis4.)