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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.

A154596 a(n) = Sum_{j=1..n-1} A142458(n-1, k)*a(n - k), with a(1) = 1.

Table of values

n a(n)
1 1
2 1
3 2
4 11
5 129
6 3214
7 162491
8 16306117
9 3231430542
10 1254563121783
11 953359099059949
12 1417753660258148022
13 4128222097278496550683
14 23571703478682225135264061
15 264268834213603744830353397238

List of values

[1, 1, 2, 11, 129, 3214, 162491, 16306117, 3231430542, 1254563121783, 953359099059949, 1417753660258148022, 4128222097278496550683, 23571703478682225135264061, 264268834213603744830353397238]

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

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