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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.

A099712 Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n labeled edges.

Table of values

n a(n)
0 1
1 1
2 4
3 30
4 338
5 5169
6 101251
7 2446806
8 71043973
9 2429762734
10 96364601877
11 4375603494478
12 225044659552381
13 12990629618136191
14 834981228656630494
15 59346659738963806022
16 4635924974380060251228
17 395864230878802130389079
18 36773114396103232927777067

List of values

[1, 1, 4, 30, 338, 5169, 101251, 2446806, 71043973, 2429762734, 96364601877, 4375603494478, 225044659552381, 12990629618136191, 834981228656630494, 59346659738963806022, 4635924974380060251228, 395864230878802130389079, 36773114396103232927777067]

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

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