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.

A361153 a(0)=0, a(1)=1; thereafter a(n) = (n-1)*a(n-1)! + (n-2)*a(n-2)!.

Table of values

n a(n)
0 0
1 1
2 1
3 3
4 20
5 9731608032706560018

List of values

[0, 1, 1, 3, 20, 9731608032706560018]

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

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