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A026620 T(2n-1,n-2), T given by A026615. 0
1, 9, 37, 147, 576, 2244, 8723, 33891, 131716, 512278, 1994202, 7770734, 30310320, 118343970, 462501135, 1809134115, 7082699580, 27750808470, 108812919270, 426966196410, 1676471166240 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..22.

CROSSREFS

Sequence in context: A271908 A257448 A288415 * A048878 A246315 A232250

Adjacent sequences:  A026617 A026618 A026619 * A026621 A026622 A026623

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 20 03:25 EST 2022. Contains 350467 sequences. (Running on oeis4.)