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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.

A336873 a(n) = Sum_{k=0..n} (binomial(n+k,k) * binomial(n,k))^n.

Table of values

n a(n)
0 1
1 3
2 73
3 36729
4 473940001
5 155741521320033
6 1453730786373283012225
7 415588116056535702096428038017
8 3278068950996636050857475073848209555969
9 756475486389705843580676191270930552553654909184513
10 5850304627708628483969594929628923064185219454493588333628772353

List of values

[1, 3, 73, 36729, 473940001, 155741521320033, 1453730786373283012225, 415588116056535702096428038017, 3278068950996636050857475073848209555969, 756475486389705843580676191270930552553654909184513, 5850304627708628483969594929628923064185219454493588333628772353]

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

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