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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.

A055194 Number of 3 X n binary matrices with distinct rows, up to row and column permutation; (n,3)-hypergraphs (including empty hyperedge but excluding multiple hyperedges).

Table of values

n a(n)
2 3
3 16
4 52
5 134
6 302
7 614
8 1159
9 2064
10 3504
11 5716
12 9018
13 13818
14 20643
15 30158
16 43190
17 60758
18 84110
19 114746
20 154469
21 205422
22 270132
23 351562
24 453172
25 578962
26 733551
27 922238
28 1151072
29 1426932
30 1757618
31 2151920
32 2619731
33 3172138
34 3821524
35 4581682
36 5467942
37 6497272
38 7688431

List of values

[3, 16, 52, 134, 302, 614, 1159, 2064, 3504, 5716, 9018, 13818, 20643, 30158, 43190, 60758, 84110, 114746, 154469, 205422, 270132, 351562, 453172, 578962, 733551, 922238, 1151072, 1426932, 1757618, 2151920, 2619731, 3172138, 3821524, 4581682, 5467942, 6497272, 7688431]

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

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