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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.

A347602 a(n) is the number of negative Euler permutations of order n.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 2
5 28
6 163
7 812
8 6724
9 70216
10 692741
11 7183944
12 86756038
13 1155576132
14 16135231015
15 239656087572
16 3838836369800
17 65522667301840
18 1178853270354697
19 22361732381344592
20 447322130002332298
21 9399988542176154796
22 206783054242756958891
23 4754731473884444589756

List of values

[0, 0, 1, 0, 2, 28, 163, 812, 6724, 70216, 692741, 7183944, 86756038, 1155576132, 16135231015, 239656087572, 3838836369800, 65522667301840, 1178853270354697, 22361732381344592, 447322130002332298, 9399988542176154796, 206783054242756958891, 4754731473884444589756]

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

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