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.

A323663 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is Sum_{j=1..n} binomial(j*k, k).

Table of values

n a(n)
1 1
2 1
3 3
4 1
5 7
6 6
7 1
8 21
9 22
10 10
11 1
12 71
13 105
14 50
15 15
16 1
17 253
18 566
19 325
20 95
21 21
22 1
23 925
24 3256
25 2386
26 780
27 161
28 28
29 1
30 3433
31 19489
32 18760
33 7231
34 1596
35 252
36 36
37 1
38 12871
39 119713
40 154085
41 71890
42 17857
43 2926
44 372
45 45
46 1
47 48621
48 748342
49 1303753
50 747860
51 214396
52 38332
53 4950
54 525
55 55

List of values

[1, 1, 3, 1, 7, 6, 1, 21, 22, 10, 1, 71, 105, 50, 15, 1, 253, 566, 325, 95, 21, 1, 925, 3256, 2386, 780, 161, 28, 1, 3433, 19489, 18760, 7231, 1596, 252, 36, 1, 12871, 119713, 154085, 71890, 17857, 2926, 372, 45, 1, 48621, 748342, 1303753, 747860, 214396, 38332, 4950, 525, 55]