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.

A232788 A232773(n) / A006882(n): Permanent of the n X n matrix with elements [1,2,...,n^2], divided by n!!.

Table of values

n a(n)
0 1
1 1
2 5
3 150
4 6932
5 965380
6 143299890
7 51176650000
8 16737737386944
9 11806879466638656
10 7023172771916784000
11 8447153882019234307200
12 8134080139379917205277696
13 15176253254155788712392633600
14 21875035292051870323313614135440
15 59270306784445546617788929301760000

List of values

[1, 1, 5, 150, 6932, 965380, 143299890, 51176650000, 16737737386944, 11806879466638656, 7023172771916784000, 8447153882019234307200, 8134080139379917205277696, 15176253254155788712392633600, 21875035292051870323313614135440, 59270306784445546617788929301760000]

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

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