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.

A336573 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = (-1)^n * Sum_{j=0..n} (-2)^j * binomial(n,j) * binomial(k*n+j+1,n)/(k*n+j+1).

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 4
10 1
11 1
12 4
13 11
14 8
15 1
16 1
17 5
18 21
19 45
20 16
21 1
22 1
23 6
24 34
25 126
26 197
27 32
28 1
29 1
30 7
31 50
32 267
33 818
34 903
35 64
36 1
37 1
38 8
39 69
40 484
41 2279
42 5594
43 4279
44 128
45 1
46 1
47 9
48 91
49 793
50 5105
51 20540
52 39693
53 20793
54 256
55 1
56 1
57 10
58 116
59 1210
60 9946
61 56928
62 192350
63 289510
64 103049
65 512

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 11, 8, 1, 1, 5, 21, 45, 16, 1, 1, 6, 34, 126, 197, 32, 1, 1, 7, 50, 267, 818, 903, 64, 1, 1, 8, 69, 484, 2279, 5594, 4279, 128, 1, 1, 9, 91, 793, 5105, 20540, 39693, 20793, 256, 1, 1, 10, 116, 1210, 9946, 56928, 192350, 289510, 103049, 512]