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.

A144210 Number of simple graphs on n labeled nodes, where each maximally connected subgraph consists of a single node or has a unique cycle of length 4; also row sums of A144209.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 4
5 76
6 1486
7 29506
8 628531
9 14633011
10 373486051
11 10423892971
12 316702467496
13 10422938835196
14 369779598658786
15 14078057663869606
16 572776958092098166
17 24810200300393961286
18 1140218754844983978646

List of values

[1, 1, 1, 1, 4, 76, 1486, 29506, 628531, 14633011, 373486051, 10423892971, 316702467496, 10422938835196, 369779598658786, 14078057663869606, 572776958092098166, 24810200300393961286, 1140218754844983978646]

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

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