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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.

A290354 a(n) is the n-th term of the n-th Euler transform of the sequence with g.f. 1+x.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 30
5 170
6 1337
7 12166
8 133476
9 1676364
10 23970089
11 383172262
12 6783362586
13 131697494825
14 2783238819896
15 63605879539200
16 1563127601683456
17 41107799958703376
18 1151957989511106438
19 34268629198432285436
20 1078577860182473404134
21 35809701458658690462644

List of values

[1, 1, 2, 6, 30, 170, 1337, 12166, 133476, 1676364, 23970089, 383172262, 6783362586, 131697494825, 2783238819896, 63605879539200, 1563127601683456, 41107799958703376, 1151957989511106438, 34268629198432285436, 1078577860182473404134, 35809701458658690462644]

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

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