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.

A189739 a(1)=3, a(2)=5, a(n)=3*a(n-1) + 5*a(n-2).

Table of values

n a(n)
1 3
2 5
3 30
4 115
5 495
6 2060
7 8655
8 36265
9 152070
10 637535
11 2672955
12 11206540
13 46984395
14 196985885
15 825879630
16 3462568315
17 14517103095
18 60864150860
19 255177968055
20 1069854658465
21 4485453815670
22 18805634739335
23 78844173296355
24 330560693585740
25 1385902947238995

List of values

[3, 5, 30, 115, 495, 2060, 8655, 36265, 152070, 637535, 2672955, 11206540, 46984395, 196985885, 825879630, 3462568315, 14517103095, 60864150860, 255177968055, 1069854658465, 4485453815670, 18805634739335, 78844173296355, 330560693585740, 1385902947238995]