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.

A336707 Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * Sum_{j=1..n} 2^(n-j) * binomial(n,j) * binomial(n+(k-1)*j,j-1) for n > 0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 3
9 6
10 1
11 1
12 4
13 11
14 20
15 1
16 1
17 5
18 19
19 45
20 72
21 1
22 1
23 6
24 30
25 100
26 197
27 272
28 1
29 1
30 7
31 44
32 201
33 562
34 903
35 1064
36 1
37 1
38 8
39 61
40 364
41 1445
42 3304
43 4279
44 4272
45 1
46 1
47 9
48 81
49 605
50 3249
51 10900
52 20071
53 20793
54 17504
55 1
56 1
57 10
58 104
59 940
60 6502
61 30526
62 85128
63 124996
64 103049
65 72896

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 3, 6, 1, 1, 4, 11, 20, 1, 1, 5, 19, 45, 72, 1, 1, 6, 30, 100, 197, 272, 1, 1, 7, 44, 201, 562, 903, 1064, 1, 1, 8, 61, 364, 1445, 3304, 4279, 4272, 1, 1, 9, 81, 605, 3249, 10900, 20071, 20793, 17504, 1, 1, 10, 104, 940, 6502, 30526, 85128, 124996, 103049, 72896]