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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.

A206848 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k^2) ).

Table of values

n a(n)
0 1
1 2
2 5
3 53
4 3422
5 826606
6 1335470713
7 9548109569885
8 190076214495558260
9 18558289189760778318731
10 10286810587274357297985552184
11 16301371794177939084545371104827679
12 91249944361047494534207504939405352235731
13 3283593155431496336538359592977826684908598341441

List of values

[1, 2, 5, 53, 3422, 826606, 1335470713, 9548109569885, 190076214495558260, 18558289189760778318731, 10286810587274357297985552184, 16301371794177939084545371104827679, 91249944361047494534207504939405352235731, 3283593155431496336538359592977826684908598341441]

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

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