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.

A293669 Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(Sum_{j=1..k} x^j).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 1
10 1
11 1
12 3
13 7
14 1
15 1
16 1
17 3
18 13
19 25
20 1
21 1
22 1
23 3
24 13
25 49
26 81
27 1
28 1
29 1
30 3
31 13
32 73
33 261
34 331
35 1
36 1
37 1
38 3
39 13
40 73
41 381
42 1531
43 1303
44 1
45 1
46 1
47 3
48 13
49 73
50 501
51 2611
52 9073
53 5937
54 1
55 1
56 1
57 3
58 13
59 73
60 501
61 3331
62 19993
63 63393
64 26785
65 1
66 1
67 1
68 3
69 13
70 73
71 501
72 4051
73 27553
74 165873
75 465769
76 133651
77 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 7, 1, 1, 1, 3, 13, 25, 1, 1, 1, 3, 13, 49, 81, 1, 1, 1, 3, 13, 73, 261, 331, 1, 1, 1, 3, 13, 73, 381, 1531, 1303, 1, 1, 1, 3, 13, 73, 501, 2611, 9073, 5937, 1, 1, 1, 3, 13, 73, 501, 3331, 19993, 63393, 26785, 1, 1, 1, 3, 13, 73, 501, 4051, 27553, 165873, 465769, 133651, 1]