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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.

A323208 a(n) = hypergeometric([-n - 1, n + 2], [-n - 2], n).

Table of values

n a(n)
0 1
1 5
2 67
3 1606
4 55797
5 2537781
6 142648495
7 9549411950
8 741894295369
9 65620725560578
10 6511108452179611
11 716273662860469000
12 86527644431076024637
13 11387523335268377432565
14 1621766490238904658104583
15 248507974510512755641561366
16 40769019250019155227631614225

List of values

[1, 5, 67, 1606, 55797, 2537781, 142648495, 9549411950, 741894295369, 65620725560578, 6511108452179611, 716273662860469000, 86527644431076024637, 11387523335268377432565, 1621766490238904658104583, 248507974510512755641561366, 40769019250019155227631614225]

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

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