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.

A323297 Number of 3-uniform hypergraphs on n labeled vertices where no two edges have exactly one vertex in common.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 16
5 76
6 271
7 1212
8 10158
9 78290
10 503231
11 3495966
12 33016534
13 327625520
14 3000119669
15 28185006956
16 308636238516
17 3631959615948
18 42031903439809
19 493129893459310
20 6264992355842706
21 84639308481270656
22 1159506969481515271
23 16131054826385628592

List of values

[1, 1, 1, 2, 16, 76, 271, 1212, 10158, 78290, 503231, 3495966, 33016534, 327625520, 3000119669, 28185006956, 308636238516, 3631959615948, 42031903439809, 493129893459310, 6264992355842706, 84639308481270656, 1159506969481515271, 16131054826385628592]

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

Content is available under The OEIS End-User License Agreement.