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A026593 T(2n-1,n-1), T given by A026584. 0
1, 1, 8, 22, 121, 406, 2155, 7624, 40717, 147001, 792351, 2892044, 15703156, 57728737, 315180458, 1164727748, 6385672193, 23691834033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..18.

CROSSREFS

Sequence in context: A083098 A033456 A264631 * A131622 A217275 A183308

Adjacent sequences:  A026590 A026591 A026592 * A026594 A026595 A026596

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 23 08:25 EDT 2018. Contains 316521 sequences. (Running on oeis4.)