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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.

A384092 a(n) = [x^n] Product_{k=1..n} 1/(1 - k^2*x)^n.

Table of values

n a(n)
0 1
1 1
2 67
3 19316
4 14842986
5 23959995900
6 70300141076691
7 340026368533209120
8 2526875675012579004324
9 27358621384723375076245950
10 414013875603209906596527455633
11 8469874364125222067804767445806552
12 227937197746419681734617268030982470980
13 7887251806534473871432104574423885714752540

List of values

[1, 1, 67, 19316, 14842986, 23959995900, 70300141076691, 340026368533209120, 2526875675012579004324, 27358621384723375076245950, 414013875603209906596527455633, 8469874364125222067804767445806552, 227937197746419681734617268030982470980, 7887251806534473871432104574423885714752540]

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

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