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.

A120689 a(n) = 10*a(n-1) - 16*a(n-2), with a(0) = 0 and a(1) = 3.

Table of values

n a(n)
0 0
1 3
2 30
3 252
4 2040
5 16368
6 131040
7 1048512
8 8388480
9 67108608
10 536870400
11 4294966272
12 34359736320
13 274877902848
14 2199023247360
15 17592186028032
16 140737488322560
17 1125899906777088
18 9007199254609920
19 72057594037665792

List of values

[0, 3, 30, 252, 2040, 16368, 131040, 1048512, 8388480, 67108608, 536870400, 4294966272, 34359736320, 274877902848, 2199023247360, 17592186028032, 140737488322560, 1125899906777088, 9007199254609920, 72057594037665792]