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.

A005331 Certain subgraphs of a directed graph (binomial transform of A005321).

Table of values

n a(n)
0 1
1 2
2 5
3 20
4 179
5 4082
6 218225
7 25316720
8 6135834479
9 3047003143022
10 3067545380897645
11 6223557209578656620
12 25360384878802358268779
13 207167485813280961035481962
14 3389045635023473628621934703465
15 110960673463328354866093662279119720
16 7268699514166911556909103208203294815079

List of values

[1, 2, 5, 20, 179, 4082, 218225, 25316720, 6135834479, 3047003143022, 3067545380897645, 6223557209578656620, 25360384878802358268779, 207167485813280961035481962, 3389045635023473628621934703465, 110960673463328354866093662279119720, 7268699514166911556909103208203294815079]

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

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