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.

A336431 Number of ordered ways to write n as the sum of a practical number (A005153) and a generalized heptagonal number (A085787).

Table of values

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

List of values

[1, 2, 1, 1, 2, 2, 1, 3, 2, 1, 1, 2, 2, 1, 2, 2, 2, 1, 4, 3, 2, 2, 1, 3, 3, 1, 1, 3, 3, 2, 4, 2, 3, 2, 3, 4, 3, 2, 2, 3, 2, 3, 4, 1, 2, 3, 3, 3, 3, 3, 1, 3, 1, 4, 4, 2, 3, 4, 2, 3, 4, 2, 3, 4, 1, 4, 5, 1, 2, 3, 3, 3, 4, 4, 2, 4, 1, 4, 4, 1, 2, 6, 3, 3, 5, 2, 4, 5, 2, 4, 5, 1, 3, 4, 2, 2, 5, 3, 2, 6]