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.

A023429 Generalized Catalan Numbers x^4*A(x)^2 -(1-x+x^4+x^5+x^6)*A(x) + 1 =0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 4
9 7
10 11
11 17
12 27
13 44
14 73
15 122
16 204
17 340
18 566
19 945
20 1586
21 2674
22 4521
23 7656
24 12982
25 22047
26 37509
27 63934
28 109166
29 186685
30 319679
31 548091
32 940819
33 1616830
34 2781706
35 4790949
36 8259748
37 14253480
38 24618561
39 42557378

List of values

[1, 1, 1, 1, 1, 1, 1, 2, 4, 7, 11, 17, 27, 44, 73, 122, 204, 340, 566, 945, 1586, 2674, 4521, 7656, 12982, 22047, 37509, 63934, 109166, 186685, 319679, 548091, 940819, 1616830, 2781706, 4790949, 8259748, 14253480, 24618561, 42557378]