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.

A071736 Expansion of (1+x^3*C^3)*C^3, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.

Table of values

n a(n)
0 1
1 3
2 9
3 29
4 96
5 324
6 1111
7 3861
8 13572
9 48178
10 172482
11 622098
12 2258416
13 8246190
14 30264435
15 111585765
16 413126460
17 1535267250
18 5724840990
19 21413721510
20 80326153440
21 302105210160
22 1138957917318
23 4303550907234
24 16294686579016

List of values

[1, 3, 9, 29, 96, 324, 1111, 3861, 13572, 48178, 172482, 622098, 2258416, 8246190, 30264435, 111585765, 413126460, 1535267250, 5724840990, 21413721510, 80326153440, 302105210160, 1138957917318, 4303550907234, 16294686579016]