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.

A140998 Triangle G(n, k), read by rows, for 0 <= k <= n, where G(n, 0) = G(n+1, n+1) = 1, G(n+2, n+1) = 2, and G(n+3, m) = G(n+1, m-1) + G(n+1, m) + G(n+2, m) for n >= 0 and m = 1..n+1.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 4
8 2
9 1
10 1
11 7
12 5
13 2
14 1
15 1
16 12
17 11
18 5
19 2
20 1
21 1
22 20
23 23
24 12
25 5
26 2
27 1
28 1
29 33
30 46
31 28
32 12
33 5
34 2
35 1
36 1
37 54
38 89
39 63
40 29
41 12
42 5
43 2
44 1
45 1
46 88
47 168
48 137
49 69
50 29
51 12
52 5
53 2
54 1
55 1
56 143
57 311
58 289
59 161
60 70
61 29
62 12
63 5
64 2
65 1
66 1
67 232
68 567
69 594
70 367
71 168
72 70
73 29
74 12
75 5
76 2
77 1

List of values

[1, 1, 1, 1, 2, 1, 1, 4, 2, 1, 1, 7, 5, 2, 1, 1, 12, 11, 5, 2, 1, 1, 20, 23, 12, 5, 2, 1, 1, 33, 46, 28, 12, 5, 2, 1, 1, 54, 89, 63, 29, 12, 5, 2, 1, 1, 88, 168, 137, 69, 29, 12, 5, 2, 1, 1, 143, 311, 289, 161, 70, 29, 12, 5, 2, 1, 1, 232, 567, 594, 367, 168, 70, 29, 12, 5, 2, 1]