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.

A080643 a(0)=0; for n>0, a(n) = 4^n - 2*3^(n-1).

Table of values

n a(n)
0 0
1 2
2 10
3 46
4 202
5 862
6 3610
7 14926
8 61162
9 249022
10 1009210
11 4076206
12 16422922
13 66045982
14 265246810
15 1064175886
16 4266269482
17 17093775742
18 68461196410
19 274103065966
20 1097187104842
21 4391072942302
22 17571265338010
23 70305982058446
24 281286690353002
25 1125335047769662

List of values

[0, 2, 10, 46, 202, 862, 3610, 14926, 61162, 249022, 1009210, 4076206, 16422922, 66045982, 265246810, 1064175886, 4266269482, 17093775742, 68461196410, 274103065966, 1097187104842, 4391072942302, 17571265338010, 70305982058446, 281286690353002, 1125335047769662]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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