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.

A374860 Obverse convolution (1)**A000201; see Comments.

Table of values

n a(n)
0 1
1 2
2 8
3 40
4 280
5 2520
6 25200
7 302400
8 3931200
9 58968000
10 1002456000
11 18044208000
12 360884160000
13 7939451520000
14 182607384960000
15 4565184624000000
16 118694800224000000
17 3323454406272000000
18 99703632188160000000
19 3090812597832960000000
20 101996815728487680000000

List of values

[1, 2, 8, 40, 280, 2520, 25200, 302400, 3931200, 58968000, 1002456000, 18044208000, 360884160000, 7939451520000, 182607384960000, 4565184624000000, 118694800224000000, 3323454406272000000, 99703632188160000000, 3090812597832960000000, 101996815728487680000000]

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

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