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.

A293461 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of g.f. Product_{i>0} (1 + Sum_{j=1..k} j*x^(j*(2*i-1))).

Table of values

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

List of values

[1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 2, 1, 0, 1, 1, 2, 1, 1, 0, 1, 1, 2, 4, 1, 1, 0, 1, 1, 2, 4, 1, 3, 1, 0, 1, 1, 2, 4, 5, 3, 3, 1, 0, 1, 1, 2, 4, 5, 3, 6, 5, 2, 0, 1, 1, 2, 4, 5, 8, 6, 5, 6, 2, 0, 1, 1, 2, 4, 5, 8, 6, 9, 9, 4, 2, 0, 1, 1, 2, 4, 5, 8, 12, 9, 9, 13]