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A026901 T(2n+1,n+4), T given by A026780. 0
1, 10, 68, 396, 2136, 11062, 56070, 281306, 1406721, 7042818, 35401568, 178975192, 910933936, 4669860386, 24114746282, 125416122430, 656713729000, 3460748531510, 18345703137458, 97782896293158, 523786141723670 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..23.

CROSSREFS

Sequence in context: A192021 A026984 A104598 * A027242 A081656 A219466

Adjacent sequences: A026898 A026899 A026900 * A026902 A026903 A026904

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 1 17:49 EST 2022. Contains 358475 sequences. (Running on oeis4.)