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A026994
a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026692.
0
1, 8, 55, 348, 2089, 10930, 59507, 303260, 1541766, 7603878, 39661955, 193854488, 942975507, 4575005798, 23493563115, 113291185280, 541966221369, 2614491663880, 13324328958963, 63919218781860, 303531944623232, 1461173082833662, 7413731116928658, 35490915453285426
OFFSET
3,2
CROSSREFS
Sequence in context: A179407 A373116 A244501 * A110184 A013698 A154245
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Oct 21 2019
STATUS
approved