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.

A189746 a(1)=5, a(2)=2, a(n) = 5*a(n-1) + 2*a(n-2).

Table of values

n a(n)
1 5
2 2
3 20
4 104
5 560
6 3008
7 16160
8 86816
9 466400
10 2505632
11 13460960
12 72316064
13 388502240
14 2087143328
15 11212721120
16 60237892256
17 323614903520
18 1738550302112
19 9339981317600
20 50177007192224
21 269564998596320
22 1448179007366048
23 7780025034022880
24 41796483184846496

List of values

[5, 2, 20, 104, 560, 3008, 16160, 86816, 466400, 2505632, 13460960, 72316064, 388502240, 2087143328, 11212721120, 60237892256, 323614903520, 1738550302112, 9339981317600, 50177007192224, 269564998596320, 1448179007366048, 7780025034022880, 41796483184846496]