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.

A317801 G.f. A(x) satisfies: Sum_{n>=0} ( 1/A(x) - 1/(1+x)^(2*n) )^n = 1.

Table of values

n a(n)
0 1
1 2
2 5
3 36
4 465
5 8504
6 196900
7 5448960
8 174282930
9 6304990774
10 254130115519
11 11285072891720
12 547300883009420
13 28782595694322682
14 1631647871872693931
15 99196878522983084624
16 6438935162966517263673
17 444501575692314862825620
18 32520919561355194120182078
19 2513781290973908970634293260
20 204713526722520414595009119193

List of values

[1, 2, 5, 36, 465, 8504, 196900, 5448960, 174282930, 6304990774, 254130115519, 11285072891720, 547300883009420, 28782595694322682, 1631647871872693931, 99196878522983084624, 6438935162966517263673, 444501575692314862825620, 32520919561355194120182078, 2513781290973908970634293260, 204713526722520414595009119193]