cp's OEIS Frontend

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.

A036980 Number of (2n) X (2n) symmetric matrices each of whose rows is a permutation of 1..(2n).

Table of values

n	a(n)
0	1
1	2
2	96
3	328320
4	440952422400

List of values

[1, 2, 96, 328320, 440952422400]

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

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