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.

A333565 O.g.f.: (1 + 4*x)/((1 + x)*sqrt(1 - 8*x)).

Table of values

n a(n)
0 1
1 7
2 33
3 223
4 1537
5 11007
6 80385
7 595455
8 4456449
9 33615871
10 255148033
11 1946337279
12 14908784641
13 114597822463
14 883479412737
15 6828492980223
16 52895475040257
17 410544577183743
18 3191929428770817
19 24855137310736383
20 193811815161921537
21 1513167009951514623
22 11827298001565515777

List of values

[1, 7, 33, 223, 1537, 11007, 80385, 595455, 4456449, 33615871, 255148033, 1946337279, 14908784641, 114597822463, 883479412737, 6828492980223, 52895475040257, 410544577183743, 3191929428770817, 24855137310736383, 193811815161921537, 1513167009951514623, 11827298001565515777]