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.

A035482 Number of n X n symmetric matrices each of whose rows is a permutation of 1..n.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 96
5 720
6 328320
7 31449600
8 440952422400
9 444733651353600
10 471835793808949248000
11 10070314878246926155776000
12 1058410183156945383046388908032000
13 614972203951464612786852376432607232000

List of values

[1, 1, 2, 6, 96, 720, 328320, 31449600, 440952422400, 444733651353600, 471835793808949248000, 10070314878246926155776000, 1058410183156945383046388908032000, 614972203951464612786852376432607232000]

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

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