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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A386368 a(n) = Sum_{k=0..n-1} binomial(6*k,k) * binomial(6*n-6*k-2,n-k-1).

Table of values

n a(n)
0 0
1 1
2 16
3 246
4 3736
5 56421
6 849432
7 12763878
8 191548464
9 2871970110
10 43031833656
11 644432826478
12 9646983339456
13 144366433138955
14 2159869510669320
15 32306874783230556
16 483151884326658144
17 7224464127509984490
18 108011596038055519680
19 1614676987907480393940

List of values

[0, 1, 16, 246, 3736, 56421, 849432, 12763878, 191548464, 2871970110, 43031833656, 644432826478, 9646983339456, 144366433138955, 2159869510669320, 32306874783230556, 483151884326658144, 7224464127509984490, 108011596038055519680, 1614676987907480393940]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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