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.

A083330 a(n) = (3*4^n - 2*3^n + 2^n)/2.

Table of values

n a(n)
0 1
1 4
2 17
3 73
4 311
5 1309
6 5447
7 22453
8 91871
9 373789
10 1514327
11 6115333
12 24636431
13 99073069
14 397878407
15 1596280213
16 6399436991
17 25640729149
18 102691925687
19 411154861093
20 1645781181551
21 6586610462029
22 26356900104167

List of values

[1, 4, 17, 73, 311, 1309, 5447, 22453, 91871, 373789, 1514327, 6115333, 24636431, 99073069, 397878407, 1596280213, 6399436991, 25640729149, 102691925687, 411154861093, 1645781181551, 6586610462029, 26356900104167]