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.

A298309 Triangle read by rows: T(n,m) = Sum_{i=0..n+1} C(n-i+1,i-1)*C(n-i+1,i)*C(n-i+1,m-i+1).

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 4
5 2
6 3
7 11
8 13
9 5
10 4
11 25
12 51
13 43
14 13
15 5
16 49
17 149
18 203
19 130
20 32
21 6
22 86
23 364
24 716
25 734
26 382
27 80
28 7
29 139
30 787
31 2099
32 3061
33 2521
34 1105
35 201
36 8
37 211
38 1553
39 5385
40 10455
41 12093
42 8311
43 3143
44 505
45 9
46 305
47 2851
48 12473
49 30918
50 47064
51 45075
52 26581
53 8843
54 1273

List of values

[0, 1, 1, 2, 4, 2, 3, 11, 13, 5, 4, 25, 51, 43, 13, 5, 49, 149, 203, 130, 32, 6, 86, 364, 716, 734, 382, 80, 7, 139, 787, 2099, 3061, 2521, 1105, 201, 8, 211, 1553, 5385, 10455, 12093, 8311, 3143, 505, 9, 305, 2851, 12473, 30918, 47064, 45075, 26581, 8843, 1273]