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.

A355865 Expansion of g.f. A(x) satisfying 0 = Sum_{n=-oo..+oo} x^n * (x^n - (-1)^n*2*A(x))^(2*n+1).

Table of values

n a(n)
0 1
1 3
2 25
3 254
4 2844
5 34031
6 426498
7 5526399
8 73433377
9 995167783
10 13701794657
11 191122323160
12 2695092314319
13 38357425655599
14 550268824751092
15 7948720164361366
16 115517358604881329
17 1687796954715824015
18 24777722054035138573
19 365305177280838473896

List of values

[1, 3, 25, 254, 2844, 34031, 426498, 5526399, 73433377, 995167783, 13701794657, 191122323160, 2695092314319, 38357425655599, 550268824751092, 7948720164361366, 115517358604881329, 1687796954715824015, 24777722054035138573, 365305177280838473896]