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.

A222050 G.f. satisfies: A(x) = sqrt(1 + 2*x*A(x)^4 + 3*x^2*A(x)^6).

Table of values

n a(n)
0 1
1 1
2 5
3 30
4 209
5 1573
6 12478
7 102714
8 869193
9 7514445
10 66083025
11 589294500
12 5316256278
13 48431659786
14 444928748618
15 4117185679310
16 38340948482745
17 359047299072777
18 3379057486089649
19 31942315551724102
20 303158909307122141
21 2887629443604011421
22 27595392738011189028

List of values

[1, 1, 5, 30, 209, 1573, 12478, 102714, 869193, 7514445, 66083025, 589294500, 5316256278, 48431659786, 444928748618, 4117185679310, 38340948482745, 359047299072777, 3379057486089649, 31942315551724102, 303158909307122141, 2887629443604011421, 27595392738011189028]

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

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