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.

A128545 Triangle, read by rows, where T(n,k) is the coefficient of q^(n*k) in the q-binomial coefficient [2*n, n] for n >= k >= 0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 3
8 3
9 1
10 1
11 5
12 8
13 5
14 1
15 1
16 7
17 18
18 18
19 7
20 1
21 1
22 11
23 39
24 58
25 39
26 11
27 1
28 1
29 15
30 75
31 155
32 155
33 75
34 15
35 1
36 1
37 22
38 141
39 383
40 526
41 383
42 141
43 22
44 1
45 1
46 30
47 251
48 867
49 1555
50 1555
51 867
52 251
53 30
54 1
55 1
56 42
57 433
58 1860
59 4192
60 5448
61 4192
62 1860
63 433
64 42
65 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 8, 5, 1, 1, 7, 18, 18, 7, 1, 1, 11, 39, 58, 39, 11, 1, 1, 15, 75, 155, 155, 75, 15, 1, 1, 22, 141, 383, 526, 383, 141, 22, 1, 1, 30, 251, 867, 1555, 1555, 867, 251, 30, 1, 1, 42, 433, 1860, 4192, 5448, 4192, 1860, 433, 42, 1]