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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.

A053604 Number of ways to write n as an ordered sum of 3 nonzero triangular numbers.

Table of values

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

List of values

[0, 0, 0, 1, 0, 3, 0, 3, 3, 1, 6, 0, 6, 3, 6, 3, 3, 9, 1, 12, 0, 6, 9, 6, 6, 6, 9, 6, 12, 0, 10, 9, 12, 6, 9, 9, 3, 18, 3, 12, 12, 9, 9, 9, 12, 10, 12, 9, 9, 18, 6, 6, 27, 6, 12, 6, 9, 18, 15, 15, 6, 21, 9, 13, 12, 9, 18, 21, 9, 6, 21, 15, 15, 15, 12, 15, 18, 15, 9]

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