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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.

A207135 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k*(n-k)) ).

Table of values

n a(n)
0 1
1 2
2 5
3 32
4 796
5 77508
6 26058970
7 28765221688
8 101824384364586
9 1145306676113095172
10 40618070255705049577152
11 4523562146025746408072408406
12 1576501611479138389748204925102907
13 1714649258669533421310212170714443813118

List of values

[1, 2, 5, 32, 796, 77508, 26058970, 28765221688, 101824384364586, 1145306676113095172, 40618070255705049577152, 4523562146025746408072408406, 1576501611479138389748204925102907, 1714649258669533421310212170714443813118]

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

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