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.

A288268 Expansion of e.g.f.: exp(Sum_{k>=1} (k-1)*x^k/k).

Table of values

n a(n)
0 1
1 0
2 1
3 4
4 21
5 136
6 1045
7 9276
8 93289
9 1047376
10 12975561
11 175721140
12 2581284541
13 40864292184
14 693347907421
15 12548540320876
16 241253367679185
17 4909234733857696
18 105394372192969489
19 2380337795595885156
20 56410454014314490981
21 1399496554158060983080

List of values

[1, 0, 1, 4, 21, 136, 1045, 9276, 93289, 1047376, 12975561, 175721140, 2581284541, 40864292184, 693347907421, 12548540320876, 241253367679185, 4909234733857696, 105394372192969489, 2380337795595885156, 56410454014314490981, 1399496554158060983080]