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A026942 a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026300. 0
4, 48, 469, 4222, 36715, 313912, 2661888, 22486072, 189688752, 1600198048, 13510004742, 114204762280, 966871825132, 8199071477920, 69645535691958, 592592023212504, 5050571335425668, 43114956743414712, 368632989326212821, 3156551837806702698 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..22.

CROSSREFS

Sequence in context: A298842 A298649 A299603 * A264727 A283049 A159903

Adjacent sequences:  A026939 A026940 A026941 * A026943 A026944 A026945

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 17 2019

STATUS

approved

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Last modified February 18 21:20 EST 2020. Contains 332028 sequences. (Running on oeis4.)