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.

A098624 Consider the family of multigraphs enriched by the species of derangements. Sequence gives number of those multigraphs with n labeled edges.

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 15
5 84
6 750
7 6852
8 79639
9 1006184
10 14875218
11 241078100
12 4392257716
13 87279581232
14 1905609327583
15 45008114794874
16 1150897256534370
17 31580332783936416
18 928535967078634497
19 29090873853321687666
20 969132936087009709174
21 34198721664081728281400

List of values

[1, 0, 1, 2, 15, 84, 750, 6852, 79639, 1006184, 14875218, 241078100, 4392257716, 87279581232, 1905609327583, 45008114794874, 1150897256534370, 31580332783936416, 928535967078634497, 29090873853321687666, 969132936087009709174, 34198721664081728281400]

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

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