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.

A336574 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = 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 3
3 1
4 3
5 6
6 1
7 3
8 15
9 12
10 1
11 3
12 24
13 93
14 24
15 1
16 3
17 33
18 255
19 645
20 48
21 1
22 3
23 42
24 498
25 3102
26 4791
27 96
28 1
29 3
30 51
31 822
32 8691
33 40854
34 37275
35 192
36 1
37 3
38 60
39 1227
40 18708
41 164937
42 566934
43 299865
44 384
45 1
46 3
47 69
48 1713
49 34449
50 464115
51 3305868
52 8164263
53 2474025
54 768

List of values

[1, 1, 3, 1, 3, 6, 1, 3, 15, 12, 1, 3, 24, 93, 24, 1, 3, 33, 255, 645, 48, 1, 3, 42, 498, 3102, 4791, 96, 1, 3, 51, 822, 8691, 40854, 37275, 192, 1, 3, 60, 1227, 18708, 164937, 566934, 299865, 384, 1, 3, 69, 1713, 34449, 464115, 3305868, 8164263, 2474025, 768]