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.

A379327 G.f. A(x) satisfies A(x) = sqrt( (1 + 2*x*A(x)^2) * (1 + 2*x*A(x)) ).

Table of values

n a(n)
0 1
1 2
2 6
3 22
4 88
5 372
6 1634
7 7382
8 34078
9 160034
10 762078
11 3671178
12 17858476
13 87599696
14 432804190
15 2151867226
16 10758455224
17 54053627604
18 272780539742
19 1382047628514
20 7027307040920
21 35848334763884
22 183417043984246
23 941007480667474
24 4839875674661214
25 24950493967407850

List of values

[1, 2, 6, 22, 88, 372, 1634, 7382, 34078, 160034, 762078, 3671178, 17858476, 87599696, 432804190, 2151867226, 10758455224, 54053627604, 272780539742, 1382047628514, 7027307040920, 35848334763884, 183417043984246, 941007480667474, 4839875674661214, 24950493967407850]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.