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A026984 a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026670. 0
1, 10, 68, 394, 2011, 10258, 47327, 229186, 1007891, 4752128, 20351196, 94455408, 398021603, 1828645056, 7624936963, 34786976248, 144011195937, 653694082256, 2692363924059, 12174658758744, 49956496140401, 225233631148500, 921619221445645, 4145493852959640, 16926389947869331 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..27.

CROSSREFS

Sequence in context: A144052 A280438 A192021 * A104598 A026901 A027242

Adjacent sequences:  A026981 A026982 A026983 * A026985 A026986 A026987

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 20 2019

STATUS

approved

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Last modified October 5 08:11 EDT 2022. Contains 357252 sequences. (Running on oeis4.)