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.

A256132 Number of ways to write n as w*(3w+1)/2 + x*(3x-1)/2 + y*(3y-1)/2 + z*(3z-1)/2, where w,x,y,z are nonnegative integers with x <= y <= z.

Table of values

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

List of values

[1, 1, 2, 2, 1, 2, 1, 3, 2, 2, 2, 1, 3, 3, 3, 3, 2, 4, 3, 2, 3, 2, 4, 1, 5, 4, 4, 4, 3, 6, 3, 4, 4, 2, 3, 3, 5, 6, 4, 6, 4, 5, 5, 6, 4, 3, 4, 6, 5, 4, 6, 7, 6, 5, 6, 5, 4, 4, 7, 7, 6, 5, 7, 8, 8, 4, 5, 5, 6, 4, 6, 9, 8, 6, 6, 9, 6, 9, 8, 8, 6, 6, 10, 6, 7, 9, 6, 8, 5, 9, 6, 5, 10, 8, 11, 6, 7, 10, 7, 9, 8]