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.

A356115 Triangle read by rows. The reduced triangle of the partition triangle of reducible permutations with weakly decreasing Lehmer code (A356266). T(n, k) for n >= 1 and 0 <= k < n.

Table of values

n a(n)
1 1
2 0
3 1
4 0
5 1
6 1
7 0
8 3
9 1
10 1
11 0
12 4
13 6
14 3
15 1
16 0
17 9
18 20
19 6
20 6
21 1
22 0
23 11
24 45
25 50
26 15
27 10
28 1
29 0
30 19
31 93
32 185
33 80
34 36
35 15
36 1
37 0
38 22
39 196
40 462
41 490
42 161
43 77
44 21
45 1
46 0
47 33
48 312
49 1120
50 1834
51 1050
52 336
53 148
54 28
55 1

List of values

[1, 0, 1, 0, 1, 1, 0, 3, 1, 1, 0, 4, 6, 3, 1, 0, 9, 20, 6, 6, 1, 0, 11, 45, 50, 15, 10, 1, 0, 19, 93, 185, 80, 36, 15, 1, 0, 22, 196, 462, 490, 161, 77, 21, 1, 0, 33, 312, 1120, 1834, 1050, 336, 148, 28, 1]