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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.

A054953 Number of unlabeled semi-strong digraphs on n nodes with an odd number of pairwise different components.

Table of values

n a(n)
1 1
2 1
3 5
4 83
5 5048
6 1047013
7 705422455
8 1580348377261
9 12139024826336632
10 328160951350054991463
11 31831080872414173375174213
12 11234274997368911879051177335450
13 14576252633139821208116086572516525403
14 70075713785837731364265242597960381223077163

List of values

[1, 1, 5, 83, 5048, 1047013, 705422455, 1580348377261, 12139024826336632, 328160951350054991463, 31831080872414173375174213, 11234274997368911879051177335450, 14576252633139821208116086572516525403, 70075713785837731364265242597960381223077163]

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

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