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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.

A010026 Triangle read by rows: number of permutations of 1..n by length of longest run.

Table of values

n a(n)
2 2
3 2
4 4
5 2
6 12
7 10
8 2
9 16
10 70
11 32
12 2
13 20
14 134
15 442
16 122
17 2
18 24
19 198
20 1164
21 3108
22 544
23 2
24 28
25 274
26 2048
27 10982
28 24216
29 2770
30 2
31 32
32 362
33 3204
34 22468
35 112354
36 208586
37 15872
38 2
39 36
40 462
41 4720
42 39420
43 264538
44 1245676
45 1972904
46 101042

List of values

[2, 2, 4, 2, 12, 10, 2, 16, 70, 32, 2, 20, 134, 442, 122, 2, 24, 198, 1164, 3108, 544, 2, 28, 274, 2048, 10982, 24216, 2770, 2, 32, 362, 3204, 22468, 112354, 208586, 15872, 2, 36, 462, 4720, 39420, 264538, 1245676, 1972904, 101042]

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

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