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.

A375561 Expansion of e.g.f. 1 / (1 + x * log(1 - x^2)).

Table of values

n a(n)
0 1
1 0
2 0
3 6
4 0
5 60
6 720
7 1680
8 40320
9 453600
10 3326400
11 67858560
12 878169600
13 11935123200
14 240708948480
15 3946374432000
16 73927190937600
17 1621341859737600
18 32960791774310400
19 758085507686707200
20 18570669277095936000
21 454016684061997056000
22 12100759898595611443200

List of values

[1, 0, 0, 6, 0, 60, 720, 1680, 40320, 453600, 3326400, 67858560, 878169600, 11935123200, 240708948480, 3946374432000, 73927190937600, 1621341859737600, 32960791774310400, 758085507686707200, 18570669277095936000, 454016684061997056000, 12100759898595611443200]

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

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