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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.

A014180 Sum_{k = 0..n} binomial(n,k)^3*binomial(n+k,k)^2.

Table of values

n a(n)
0 1
1 5
2 109
3 3533
4 133501
5 5629505
6 254899765
7 12129399245
8 599084606845
9 30455459491505
10 1584249399505609
11 83970120618566825
12 4520585403820052581
13 246592348286170615097
14 13603606921687170927109
15 757808346139996787715533
16 42575668004558257371188605
17 2410024012619343278147357297

List of values

[1, 5, 109, 3533, 133501, 5629505, 254899765, 12129399245, 599084606845, 30455459491505, 1584249399505609, 83970120618566825, 4520585403820052581, 246592348286170615097, 13603606921687170927109, 757808346139996787715533, 42575668004558257371188605, 2410024012619343278147357297]

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

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