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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.

A383965 Self-convolution square-root of A004381, where A004381(n) = binomial(8*n,n).

Table of values

n a(n)
0 1
1 4
2 52
3 804
4 13412
5 233548
6 4180932
7 76307228
8 1412731844
9 26443784224
10 499310856828
11 9494966722696
12 181620437132820
13 3491268491768400
14 67396227598309788
15 1305787014634864584
16 25380012805871145604
17 494684878753394992992
18 9665968233663380580256
19 189289570996914582016788

List of values

[1, 4, 52, 804, 13412, 233548, 4180932, 76307228, 1412731844, 26443784224, 499310856828, 9494966722696, 181620437132820, 3491268491768400, 67396227598309788, 1305787014634864584, 25380012805871145604, 494684878753394992992, 9665968233663380580256, 189289570996914582016788]

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

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