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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.

A357510 a(n) = Sum_{k = 0..n} k * binomial(n,k)^2 * binomial(n+k,k)^2.

Table of values

n a(n)
0 0
1 4
2 108
3 3144
4 95000
5 2935020
6 92054340
7 2918972560
8 93330811440
9 3003683380020
10 97177865060540
11 3157623679795992
12 102973952434618824
13 3368460743291372092
14 110480459392323735540
15 3631941224582026770720
16 119637879389041977365600
17 3947968300820696313987780

List of values

[0, 4, 108, 3144, 95000, 2935020, 92054340, 2918972560, 93330811440, 3003683380020, 97177865060540, 3157623679795992, 102973952434618824, 3368460743291372092, 110480459392323735540, 3631941224582026770720, 119637879389041977365600, 3947968300820696313987780]

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

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