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.

A293486 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. Product_{i>0} Sum_{j=0..k} x^(j*(2*i-1))/j!.

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 1
13 6
14 0
15 1
16 1
17 1
18 6
19 24
20 0
21 1
22 1
23 1
24 7
25 24
26 120
27 0
28 1
29 1
30 1
31 7
32 24
33 180
34 720
35 0
36 1
37 1
38 1
39 7
40 25
41 180
42 1080
43 5040
44 0
45 1
46 1
47 1
48 7
49 25
50 180
51 1200
52 10080
53 80640
54 0
55 1
56 1
57 1
58 7
59 25
60 181
61 1200
62 10080
63 90720
64 725760
65 0
66 1
67 1
68 1
69 7
70 25

List of values

[1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 6, 0, 1, 1, 1, 6, 24, 0, 1, 1, 1, 7, 24, 120, 0, 1, 1, 1, 7, 24, 180, 720, 0, 1, 1, 1, 7, 25, 180, 1080, 5040, 0, 1, 1, 1, 7, 25, 180, 1200, 10080, 80640, 0, 1, 1, 1, 7, 25, 181, 1200, 10080, 90720, 725760, 0, 1, 1, 1, 7, 25]