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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.

A182316 a(n) = binomial(n^2 + 3*n, n) / (n+1)^2.

Table of values

n a(n)
0 1
1 1
2 5
3 51
4 819
5 18278
6 527085
7 18730855
8 793542167
9 39113958819
10 2201663313200
11 139461523272085
12 9824294829146550
13 762188806010669820
14 64595315110014533629
15 5939055918736259991759
16 588894813538193130767295
17 62651281502108852275337225

List of values

[1, 1, 5, 51, 819, 18278, 527085, 18730855, 793542167, 39113958819, 2201663313200, 139461523272085, 9824294829146550, 762188806010669820, 64595315110014533629, 5939055918736259991759, 588894813538193130767295, 62651281502108852275337225]

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

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