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.

A000138 Expansion of e.g.f. exp(-x^4/4)/(1-x).

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 18
5 90
6 540
7 3780
8 31500
9 283500
10 2835000
11 31185000
12 372972600
13 4848643800
14 67881013200
15 1018215198000
16 16294848570000
17 277012425690000
18 4986223662420000
19 94738249585980000
20 1894745192712372000
21 39789649046959812000
22 875372279033115864000

List of values

[1, 1, 2, 6, 18, 90, 540, 3780, 31500, 283500, 2835000, 31185000, 372972600, 4848643800, 67881013200, 1018215198000, 16294848570000, 277012425690000, 4986223662420000, 94738249585980000, 1894745192712372000, 39789649046959812000, 875372279033115864000]

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

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