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A027242 a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026769. 0
1, 10, 68, 402, 2258, 12072, 64963, 338824, 1817063, 9467940, 51258781, 269085042, 1475551064, 7822940886, 43422818989, 232480179882, 1303561020575, 7040175844640, 39786449049369, 216469879238194, 1230485470688864, 6736096483008440, 38451562317699992, 211571284685596944 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..26.

CROSSREFS

Sequence in context: A026984 A104598 A026901 * A081656 A219466 A330352

Adjacent sequences:  A027239 A027240 A027241 * A027243 A027244 A027245

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 26 2019

STATUS

approved

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Last modified May 20 20:15 EDT 2022. Contains 353876 sequences. (Running on oeis4.)