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.

A361277 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * Sum_{j=0..n} binomial(k*j,n-j)/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 5
13 7
14 1
15 1
16 1
17 7
18 19
19 25
20 1
21 1
22 1
23 9
24 37
25 97
26 81
27 1
28 1
29 1
30 11
31 61
32 241
33 581
34 331
35 1
36 1
37 1
38 13
39 91
40 481
41 1981
42 3661
43 1303
44 1
45 1
46 1
47 15
48 127
49 841
50 4881
51 17551
52 26335
53 5937
54 1
55 1
56 1
57 17
58 169
59 1345
60 10001
61 55321
62 171697
63 202049
64 26785
65 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 7, 1, 1, 1, 7, 19, 25, 1, 1, 1, 9, 37, 97, 81, 1, 1, 1, 11, 61, 241, 581, 331, 1, 1, 1, 13, 91, 481, 1981, 3661, 1303, 1, 1, 1, 15, 127, 841, 4881, 17551, 26335, 5937, 1, 1, 1, 17, 169, 1345, 10001, 55321, 171697, 202049, 26785, 1]