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.

A008291 Triangle of rencontres numbers.

Table of values

n a(n)
2 1
3 2
4 3
5 9
6 8
7 6
8 44
9 45
10 20
11 10
12 265
13 264
14 135
15 40
16 15
17 1854
18 1855
19 924
20 315
21 70
22 21
23 14833
24 14832
25 7420
26 2464
27 630
28 112
29 28
30 133496
31 133497
32 66744
33 22260
34 5544
35 1134
36 168
37 36
38 1334961
39 1334960
40 667485
41 222480
42 55650
43 11088
44 1890
45 240
46 45
47 14684570

List of values

[1, 2, 3, 9, 8, 6, 44, 45, 20, 10, 265, 264, 135, 40, 15, 1854, 1855, 924, 315, 70, 21, 14833, 14832, 7420, 2464, 630, 112, 28, 133496, 133497, 66744, 22260, 5544, 1134, 168, 36, 1334961, 1334960, 667485, 222480, 55650, 11088, 1890, 240, 45, 14684570]

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

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