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.

A320606 Regular triangle read by rows where T(n,k) is the number of k-uniform hypergraphs spanning n labeled vertices where every two vertices appear together in some edge, n >= 0, 0 <= k <= n.

Table of values

n a(n)
1 1
2 0
3 1
4 0
5 0
6 1
7 0
8 0
9 1
10 1
11 0
12 0
13 1
14 5
15 1
16 0
17 0
18 1
19 388
20 16
21 1
22 0
23 0
24 1
25 477965
26 27626
27 42
28 1

List of values

[1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 5, 1, 0, 0, 1, 388, 16, 1, 0, 0, 1, 477965, 27626, 42, 1]

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

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