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.

A108723 Triangle read by rows: T(n,k) is number of permutations of [n] with ascending runs consisting of consecutive integers and having k fixed points.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 0
5 1
6 2
7 1
8 0
9 1
10 6
11 0
12 1
13 0
14 1
15 10
16 4
17 0
18 1
19 0
20 1
21 26
22 0
23 4
24 0
25 1
26 0
27 1
28 42
29 16
30 0
31 4
32 0
33 1
34 0
35 1
36 106
37 0
38 16
39 0
40 4
41 0
42 1
43 0
44 1
45 170
46 64
47 0
48 16
49 0
50 4
51 0
52 1
53 0
54 1
55 426
56 0
57 64
58 0
59 16
60 0
61 4
62 0
63 1
64 0
65 1
66 682
67 256
68 0
69 64
70 0
71 16
72 0
73 4
74 0
75 1
76 0
77 1
78 1706
79 0
80 256
81 0
82 64
83 0
84 16
85 0
86 4
87 0
88 1
89 0
90 1

List of values

[1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 6, 0, 1, 0, 1, 10, 4, 0, 1, 0, 1, 26, 0, 4, 0, 1, 0, 1, 42, 16, 0, 4, 0, 1, 0, 1, 106, 0, 16, 0, 4, 0, 1, 0, 1, 170, 64, 0, 16, 0, 4, 0, 1, 0, 1, 426, 0, 64, 0, 16, 0, 4, 0, 1, 0, 1, 682, 256, 0, 64, 0, 16, 0, 4, 0, 1, 0, 1, 1706, 0, 256, 0, 64, 0, 16, 0, 4, 0, 1, 0, 1]