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.

A369083 Expansion of g.f. A(x) satisfying A(x) = 1 + x*(5*A(x)^2 - A(-x)^2)/4.

Table of values

n a(n)
0 1
1 1
2 3
3 7
4 30
5 83
6 402
7 1199
8 6180
9 19232
10 102939
11 329217
12 1807344
13 5891442
14 32936724
15 108884607
16 617125788
17 2062285676
18 11813994060
19 39818644316
20 230067933810
21 780838528379
22 4543410985386
23 15509003672617
24 90771938228244
25 311354249554852
26 1831389290870538
27 6307784087296006

List of values

[1, 1, 3, 7, 30, 83, 402, 1199, 6180, 19232, 102939, 329217, 1807344, 5891442, 32936724, 108884607, 617125788, 2062285676, 11813994060, 39818644316, 230067933810, 780838528379, 4543410985386, 15509003672617, 90771938228244, 311354249554852, 1831389290870538, 6307784087296006]