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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.

A001425 Number of commutative groupoids with n elements.

Table of values

n a(n)
0 1
1 1
2 4
3 129
4 43968
5 254429900
6 30468670170912
7 91267244789189735259
8 8048575431238519331999571800
9 24051927835861852500932966021650993560
10 2755731922430783367615449408031031255131879354330

List of values

[1, 1, 4, 129, 43968, 254429900, 30468670170912, 91267244789189735259, 8048575431238519331999571800, 24051927835861852500932966021650993560, 2755731922430783367615449408031031255131879354330]

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

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