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.

A144208 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 3; also row sums of A144207.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 17
5 221
6 3261
7 54801
8 1049235
9 22695027
10 548904831
11 14701691121
12 432342705351
13 13856514927207
14 480891887472585
15 17971038945463101
16 719613541474095591
17 30743125693699501431
18 1395902175504288127695

List of values

[1, 1, 1, 2, 17, 221, 3261, 54801, 1049235, 22695027, 548904831, 14701691121, 432342705351, 13856514927207, 480891887472585, 17971038945463101, 719613541474095591, 30743125693699501431, 1395902175504288127695]

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

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