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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.

A321224 Sporadic numbers: n is defined to be sporadic if the set of groups G not in {A_n, S_n} and having a core-free maximal subgroup of index n is nonempty and contains only sporadic simple groups.

Table of values

n a(n)
1 266
2 506
3 759
4 1045
5 1288
6 1463
7 3795

List of values

[266, 506, 759, 1045, 1288, 1463, 3795]

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