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.

A144944 Super-Catalan triangle (read by rows) = triangular array associated with little Schroeder numbers (read by rows): T(0,0)=1, T(p,q) = T(p,q-1) if 0 < p = q, T(p,q) = T(p,q-1) + T(p-1,q) + T(p-1,q-1) if -1 < p < q and T(p,q) = 0 otherwise.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 3
6 1
7 5
8 11
9 11
10 1
11 7
12 23
13 45
14 45
15 1
16 9
17 39
18 107
19 197
20 197
21 1
22 11
23 59
24 205
25 509
26 903
27 903
28 1
29 13
30 83
31 347
32 1061
33 2473
34 4279
35 4279
36 1
37 15
38 111
39 541
40 1949
41 5483
42 12235
43 20793
44 20793
45 1
46 17
47 143
48 795
49 3285
50 10717
51 28435
52 61463
53 103049
54 103049

List of values

[1, 1, 1, 1, 3, 3, 1, 5, 11, 11, 1, 7, 23, 45, 45, 1, 9, 39, 107, 197, 197, 1, 11, 59, 205, 509, 903, 903, 1, 13, 83, 347, 1061, 2473, 4279, 4279, 1, 15, 111, 541, 1949, 5483, 12235, 20793, 20793, 1, 17, 143, 795, 3285, 10717, 28435, 61463, 103049, 103049]