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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.

A158945 Triangle read by rows, A158944 * an infinite matrix with A158943 (prefaced with a 1) as the right border: (1, 1, 1, 3, 5, 10, 19, 36, ...) and the rest zeros.

Table of values

n a(n)
1 1
2 0
3 1
4 2
5 0
6 1
7 0
8 2
9 0
10 3
11 3
12 0
13 2
14 0
15 5
16 0
17 3
18 0
19 6
20 0
21 10
22 4
23 0
24 3
25 0
26 10
27 0
28 19
29 0
30 4
31 0
32 9
33 0
34 20
35 0
36 36
37 5
38 0
39 4
40 0
41 15
42 0
43 38
44 0
45 69
46 0
47 5
48 0
49 12
50 0
51 30
52 0
53 72
54 0
55 131
56 6
57 0
58 5
59 0
60 20
61 0
62 57
63 0
64 138
65 0
66 250
67 0
68 6
69 0
70 15
71 0
72 40
73 0
74 108
75 0
76 262
77 0
78 476

List of values

[1, 0, 1, 2, 0, 1, 0, 2, 0, 3, 3, 0, 2, 0, 5, 0, 3, 0, 6, 0, 10, 4, 0, 3, 0, 10, 0, 19, 0, 4, 0, 9, 0, 20, 0, 36, 5, 0, 4, 0, 15, 0, 38, 0, 69, 0, 5, 0, 12, 0, 30, 0, 72, 0, 131, 6, 0, 5, 0, 20, 0, 57, 0, 138, 0, 250, 0, 6, 0, 15, 0, 40, 0, 108, 0, 262, 0, 476]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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