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.

A102537 Triangle T(n,k) read by rows: (1/n) * C(2n+k,k-1) * C(n,k); n, k >= 1.

Table of values

n a(n)
1 1
2 1
3 3
4 1
5 8
6 12
7 1
8 15
9 55
10 55
11 1
12 24
13 156
14 364
15 273
16 1
17 35
18 350
19 1400
20 2380
21 1428
22 1
23 48
24 680
25 4080
26 11628
27 15504
28 7752
29 1
30 63
31 1197
32 9975
33 41895
34 92169
35 100947
36 43263
37 1
38 80
39 1960
40 21560
41 123970
42 396704
43 708400
44 657800
45 246675
46 1
47 99
48 3036
49 42504

List of values

[1, 1, 3, 1, 8, 12, 1, 15, 55, 55, 1, 24, 156, 364, 273, 1, 35, 350, 1400, 2380, 1428, 1, 48, 680, 4080, 11628, 15504, 7752, 1, 63, 1197, 9975, 41895, 92169, 100947, 43263, 1, 80, 1960, 21560, 123970, 396704, 708400, 657800, 246675, 1, 99, 3036, 42504]