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.

A316723 Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of Product_{j=1..k} (1+x^j)/(1-x^j).

Table of values

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

List of values

[1, 1, 0, 1, 2, 0, 1, 2, 2, 0, 1, 2, 4, 2, 0, 1, 2, 4, 6, 2, 0, 1, 2, 4, 8, 8, 2, 0, 1, 2, 4, 8, 12, 10, 2, 0, 1, 2, 4, 8, 14, 18, 12, 2, 0, 1, 2, 4, 8, 14, 22, 26, 14, 2, 0, 1, 2, 4, 8, 14, 24, 34, 34, 16, 2, 0, 1, 2, 4, 8, 14, 24, 38, 50, 44, 18, 2, 0, 1, 2, 4, 8, 14, 24, 40, 58, 70, 56, 20, 2, 0]