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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.

A350794 Number of digraphs on n unlabeled nodes with a global source and sink.

Table of values

n a(n)
1 1
2 1
3 2
4 20
5 574
6 48854
7 12444800
8 9849180230
9 25265372689314
10 218451490123178684
11 6562780921564838071734
12 700270642102506752862044142
13 269621199012416753533007480951824
14 378982029174285293421133982496722212766
15 1962119228020498122395242424575089505014761082

List of values

[1, 1, 2, 20, 574, 48854, 12444800, 9849180230, 25265372689314, 218451490123178684, 6562780921564838071734, 700270642102506752862044142, 269621199012416753533007480951824, 378982029174285293421133982496722212766, 1962119228020498122395242424575089505014761082]

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

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