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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.

A189423 Expansion of e.g.f. exp(log(1+x) + log(1+x)^2).

Table of values

n a(n)
0 1
1 1
2 2
3 0
4 10
5 -50
6 368
7 -3052
8 28740
9 -302220
10 3508152
11 -44532048
12 613399752
13 -9109006920
14 145029146208
15 -2463935369040
16 44482964644368
17 -850291412311152
18 17153458120885152
19 -364163960169826944
20 8114899768747511712
21 -189364681355153357088
22 4617713773733245962240

List of values

[1, 1, 2, 0, 10, -50, 368, -3052, 28740, -302220, 3508152, -44532048, 613399752, -9109006920, 145029146208, -2463935369040, 44482964644368, -850291412311152, 17153458120885152, -364163960169826944, 8114899768747511712, -189364681355153357088, 4617713773733245962240]

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

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