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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.

A361600 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * Sum_{j=0..n} binomial(n+(k-1)*j,k*j)/j!.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 2
5 5
6 1
7 2
8 7
9 16
10 1
11 2
12 9
13 34
14 65
15 1
16 2
17 11
18 58
19 209
20 326
21 1
22 2
23 13
24 88
25 473
26 1546
27 1957
28 1
29 2
30 15
31 124
32 881
33 4626
34 13327
35 13700
36 1
37 2
38 17
39 166
40 1457
41 10526
42 52537
43 130922
44 109601
45 1
46 2
47 19
48 214
49 2225
50 20326
51 145867
52 677594
53 1441729
54 986410

List of values

[1, 1, 2, 1, 2, 5, 1, 2, 7, 16, 1, 2, 9, 34, 65, 1, 2, 11, 58, 209, 326, 1, 2, 13, 88, 473, 1546, 1957, 1, 2, 15, 124, 881, 4626, 13327, 13700, 1, 2, 17, 166, 1457, 10526, 52537, 130922, 109601, 1, 2, 19, 214, 2225, 20326, 145867, 677594, 1441729, 986410]