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A026751 T(2n-1,n-1), T given by A026747. 0
1, 4, 17, 74, 327, 1461, 6584, 29879, 136391, 625731, 2883357, 13338421, 61920497, 288368511, 1346873365, 6307694990, 29613690966, 139352892908, 657163401162, 3105304341356, 14701236957028, 69722518168060, 331220099616432 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

CROSSREFS

Sequence in context: A125586 A086351 A049027 * A227504 A218984 A289800

Adjacent sequences:  A026748 A026749 A026750 * A026752 A026753 A026754

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 22 14:36 EDT 2019. Contains 325222 sequences. (Running on oeis4.)