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.

A000090 Expansion of e.g.f. exp((-x^3)/3)/(1-x).

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 16
5 80
6 520
7 3640
8 29120
9 259840
10 2598400
11 28582400
12 343235200
13 4462057600
14 62468806400
15 936987251200
16 14991796019200
17 254860532326400
18 4587501779660800
19 87162533813555200
20 1743250676271104000
21 36608259566534656000
22 805381710463762432000

List of values

[1, 1, 2, 4, 16, 80, 520, 3640, 29120, 259840, 2598400, 28582400, 343235200, 4462057600, 62468806400, 936987251200, 14991796019200, 254860532326400, 4587501779660800, 87162533813555200, 1743250676271104000, 36608259566534656000, 805381710463762432000]

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

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