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.

A257285 a(n) = 4*5^n - 3*4^n.

Table of values

n a(n)
0 1
1 8
2 52
3 308
4 1732
5 9428
6 50212
7 263348
8 1365892
9 7026068
10 35916772
11 182729588
12 926230852
13 4681485908
14 23608756132
15 118849087028
16 597466660612
17 3000218204948
18 15052630632292
19 75469311591668
20 378171191679172
21 1894154493279188
22 9483966605929252

List of values

[1, 8, 52, 308, 1732, 9428, 50212, 263348, 1365892, 7026068, 35916772, 182729588, 926230852, 4681485908, 23608756132, 118849087028, 597466660612, 3000218204948, 15052630632292, 75469311591668, 378171191679172, 1894154493279188, 9483966605929252]