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.

A069135 a(n) = (n!*(n+1)!)^2.

Table of values

n a(n)
0 1
1 4
2 144
3 20736
4 8294400
5 7464960000
6 13168189440000
7 41295442083840000
8 214075571762626560000
9 1734012131277275136000000
10 20981546788455029145600000000
11 365582471242040427832934400000000
12 8896815020146295851742291558400000000
13 294698100727325903793111665580441600000000

List of values

[1, 4, 144, 20736, 8294400, 7464960000, 13168189440000, 41295442083840000, 214075571762626560000, 1734012131277275136000000, 20981546788455029145600000000, 365582471242040427832934400000000, 8896815020146295851742291558400000000, 294698100727325903793111665580441600000000]

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

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