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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.

A086345 Number of connected oriented graphs (i.e., connected directed graphs with no bidirected edges) on n nodes.

Table of values

n a(n)
0 1
1 1
2 1
3 5
4 34
5 535
6 20848
7 2120098
8 572849763
9 415361983540
10 815590925440865
11 4373589784210012634
12 64535461714821630421106
13 2637732191356603658136444467
14 300363258297687600380548275359231

List of values

[1, 1, 1, 5, 34, 535, 20848, 2120098, 572849763, 415361983540, 815590925440865, 4373589784210012634, 64535461714821630421106, 2637732191356603658136444467, 300363258297687600380548275359231]

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

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