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.

A072457 Shadow transform of tetrahedral numbers A000292.

Table of values

n a(n)
0 0
1 1
2 1
3 1
4 2
5 3
6 1
7 3
8 2
9 1
10 4
11 3
12 3
13 3
14 4
15 3
16 2
17 3
18 1
19 3
20 7
21 2
22 4
23 3
24 3
25 3
26 4
27 1
28 7
29 3
30 3
31 3
32 2
33 2
34 4
35 9
36 2
37 3
38 4
39 3
40 7
41 3
42 6
43 3
44 7
45 2
46 4
47 3
48 2
49 3
50 4
51 4
52 7
53 3
54 1
55 9
56 7
57 4
58 4
59 3
60 6
61 3
62 4
63 4
64 2
65 9
66 4
67 3
68 7
69 3
70 13
71 3
72 2
73 3
74 4
75 2
76 7
77 9
78 4
79 3
80 7
81 1
82 4
83 3
84 8
85 9
86 4
87 2
88 7
89 3
90 4
91 9
92 7
93 3
94 4
95 9
96 3
97 3
98 4
99 3
100 7
101 3
102 3
103 3
104 7

List of values

[0, 1, 1, 1, 2, 3, 1, 3, 2, 1, 4, 3, 3, 3, 4, 3, 2, 3, 1, 3, 7, 2, 4, 3, 3, 3, 4, 1, 7, 3, 3, 3, 2, 2, 4, 9, 2, 3, 4, 3, 7, 3, 6, 3, 7, 2, 4, 3, 2, 3, 4, 4, 7, 3, 1, 9, 7, 4, 4, 3, 6, 3, 4, 4, 2, 9, 4, 3, 7, 3, 13, 3, 2, 3, 4, 2, 7, 9, 4, 3, 7, 1, 4, 3, 8, 9, 4, 2, 7, 3, 4, 9, 7, 3, 4, 9, 3, 3, 4, 3, 7, 3, 3, 3, 7]