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.

A365609 G.f. satisfies A(x) = 1 + x^2*A(x)^4*(1 + x*A(x)).

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 4
5 9
6 27
7 78
8 231
9 715
10 2193
11 6954
12 21999
13 70840
14 228896
15 746650
16 2447757
17 8072208
18 26745627
19 89002364
20 297344960
21 996865397
22 3352918429
23 11310307593
24 38256171642
25 129718262583
26 440855654827
27 1501451066767
28 5123671576890
29 17516503865294

List of values

[1, 0, 1, 1, 4, 9, 27, 78, 231, 715, 2193, 6954, 21999, 70840, 228896, 746650, 2447757, 8072208, 26745627, 89002364, 297344960, 996865397, 3352918429, 11310307593, 38256171642, 129718262583, 440855654827, 1501451066767, 5123671576890, 17516503865294]