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.

A355855 A family of triangles T(m), m > 0, read by triangles and then by rows; triangle T(1) is [1; 1, 1]; for m > 0, triangle T(m+1) is obtained by replacing each subtriangle [t; u, v] in T(m) by [t; t+u, t+v; u, u+v, v].

Table of values

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

List of values

[1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 3, 3, 2, 4, 2, 3, 4, 4, 3, 1, 3, 2, 3, 1, 1, 4, 4, 3, 6, 3, 5, 7, 7, 5, 2, 6, 4, 6, 2, 5, 6, 8, 8, 6, 5, 3, 7, 4, 8, 4, 7, 3, 4, 6, 7, 6, 6, 7, 6, 4, 1, 4, 3, 5, 2, 5, 3, 4, 1, 1, 5, 5, 4, 8, 4, 7, 10, 10, 7, 3, 9, 6, 9, 3, 8, 10, 13, 13, 10, 8]