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.

A114176 Triangle, read by rows, where the g.f. of column n, C_n(x), equals the g.f. of row n, R_n(x), divided by (1-x)^(n+1)*(1-x^2)^n, for n>=0; e.g., C_n(x) = R_n(x)/(1-x)^(n+1)/(1-x^2)^n.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 1
6 1
7 6
8 6
9 1
10 1
11 10
12 18
13 10
14 1
15 1
16 15
17 43
18 43
19 15
20 1
21 1
22 21
23 86
24 135
25 87
26 21
27 1
28 1
29 28
30 156
31 345
32 345
33 159
34 28
35 1
36 1
37 36
38 260
39 771
40 1083
41 777
42 267
43 36
44 1
45 1
46 45
47 410
48 1557
49 2901
50 2927
51 1577
52 423
53 45
54 1
55 1
56 55
57 615
58 2913
59 6909
60 9219
61 7001
62 2973
63 637
64 55
65 1

List of values

[1, 1, 1, 1, 3, 1, 1, 6, 6, 1, 1, 10, 18, 10, 1, 1, 15, 43, 43, 15, 1, 1, 21, 86, 135, 87, 21, 1, 1, 28, 156, 345, 345, 159, 28, 1, 1, 36, 260, 771, 1083, 777, 267, 36, 1, 1, 45, 410, 1557, 2901, 2927, 1577, 423, 45, 1, 1, 55, 615, 2913, 6909, 9219, 7001, 2973, 637, 55, 1]