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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.

A302394 Number of families of 3-subsets of an n-set that cover all 2-subsets.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 5
5 388
6 477965
7 19199206747
8 48058624241034238
9 14791854612528152343049939
10 112039538006858119010793653395340973
11 42077073837090084518028123082446810913910363417140

List of values

[1, 1, 0, 1, 5, 388, 477965, 19199206747, 48058624241034238, 14791854612528152343049939, 112039538006858119010793653395340973, 42077073837090084518028123082446810913910363417140]

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

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