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.

A279055 Self-convolution of squares of factorial numbers (A001044).

Table of values

n a(n)
0 1
1 2
2 9
3 80
4 1240
5 30240
6 1071504
7 51996672
8 3307723776
9 266872320000
10 26615381760000
11 3214252921651200
12 462189467175321600
13 78024380924038348800
14 15279632043682406400000
15 3435553774431004262400000
16 879010223384483132866560000
17 253916900613208108255150080000

List of values

[1, 2, 9, 80, 1240, 30240, 1071504, 51996672, 3307723776, 266872320000, 26615381760000, 3214252921651200, 462189467175321600, 78024380924038348800, 15279632043682406400000, 3435553774431004262400000, 879010223384483132866560000, 253916900613208108255150080000]

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

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