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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.

A218689 Sum_{k=0..n} C(n,k)^6*C(n+k,k)^6.

Table of values

n a(n)
0 1
1 65
2 93313
3 795985985
4 8178690000001
5 93706344780048065
6 1453730786373283012225
7 26552497154713885161031745
8 513912636558068387176582890625
9 10769375530849394271690330588432065
10 243282405272735566295972089793676717313
11 5763401688773271719278313934033057270226625

List of values

[1, 65, 93313, 795985985, 8178690000001, 93706344780048065, 1453730786373283012225, 26552497154713885161031745, 513912636558068387176582890625, 10769375530849394271690330588432065, 243282405272735566295972089793676717313, 5763401688773271719278313934033057270226625]

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

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