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.

A351580 a(n) is the number of multisets of size n-1 consisting of permutations of n elements.

Table of values

n a(n)
1 1
2 2
3 21
4 2600
5 9078630
6 1634935320144
7 22831938997720867560
8 34390564970975286088924022400
9 7457911916650283082000186530740981347120
10 300682790088737748950725540713718365319268411170195200
11 2830053444386286847574443631356044745870287426798365860653876609636480

List of values

[1, 2, 21, 2600, 9078630, 1634935320144, 22831938997720867560, 34390564970975286088924022400, 7457911916650283082000186530740981347120, 300682790088737748950725540713718365319268411170195200, 2830053444386286847574443631356044745870287426798365860653876609636480]

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

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