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.

A054927 Number of connected unlabeled graphs having n nodes and ceiling(n(n-1)/4) edges such that the complement is also connected.

Table of values

n a(n)
1 1
2 0
3 0
4 1
5 4
6 17
7 122
8 1512
9 32692
10 1332942
11 105327842
12 15931236010
13 4514847754466
14 2400986640234092
15 2424697785383015323
16 4646743375611622382082
17 16785578201380816581985232
18 114710315501226850209685442155

List of values

[1, 0, 0, 1, 4, 17, 122, 1512, 32692, 1332942, 105327842, 15931236010, 4514847754466, 2400986640234092, 2424697785383015323, 4646743375611622382082, 16785578201380816581985232, 114710315501226850209685442155]

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

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