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.

A046740 Triangle of number of permutations of [n] with 0 successions, by number of rises.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 8
7 2
8 1
9 22
10 28
11 2
12 1
13 52
14 182
15 72
16 2
17 1
18 114
19 864
20 974
21 164
22 2
23 1
24 240
25 3474
26 8444
27 4174
28 352
29 2
30 1
31 494
32 12660
33 57194
34 61464
35 15782
36 732
37 2
38 1
39 1004
40 43358
41 332528
42 660842
43 373940
44 55286
45 1496
46 2
47 1
48 2026
49 142552
50 1747558
51 5814124

List of values

[1, 1, 1, 2, 1, 8, 2, 1, 22, 28, 2, 1, 52, 182, 72, 2, 1, 114, 864, 974, 164, 2, 1, 240, 3474, 8444, 4174, 352, 2, 1, 494, 12660, 57194, 61464, 15782, 732, 2, 1, 1004, 43358, 332528, 660842, 373940, 55286, 1496, 2, 1, 2026, 142552, 1747558, 5814124]