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.

A337850 G.f. A(x) satisfies: Sum_{n>=0} x^(n^2) * A(x)^n = Sum_{n>=0} x^n * (1+x)^(n^2).

Table of values

n a(n)
0 1
1 2
2 5
3 15
4 53
5 217
6 973
7 4735
8 24686
9 137026
10 805273
11 4986541
12 32409056
13 220327688
14 1562196894
15 11522725486
16 88215618320
17 699573288808
18 5736354452771
19 48556636776122
20 423674461139747
21 3805446588538974
22 35142868684678717
23 333303148345306269
24 3243121812554272131

List of values

[1, 2, 5, 15, 53, 217, 973, 4735, 24686, 137026, 805273, 4986541, 32409056, 220327688, 1562196894, 11522725486, 88215618320, 699573288808, 5736354452771, 48556636776122, 423674461139747, 3805446588538974, 35142868684678717, 333303148345306269, 3243121812554272131]