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.

A091347 a(n) = 6*4^n - 12*3^n + 7*2^n - 1.

Table of values

n a(n)
0 0
1 1
2 15
3 115
4 675
5 3451
6 16275
7 72955
8 316275
9 1340251
10 5590035
11 23054395
12 94314675
13 383578651
14 1553331795
15 6270493435
16 25253701875
17 101530450651
18 407669649555
19 1635323974075
20 6555235693875
21 26262769508251
22 105176572911315
23 421082805640315
24 1685460823266675
25 6745232212623451

List of values

[0, 1, 15, 115, 675, 3451, 16275, 72955, 316275, 1340251, 5590035, 23054395, 94314675, 383578651, 1553331795, 6270493435, 25253701875, 101530450651, 407669649555, 1635323974075, 6555235693875, 26262769508251, 105176572911315, 421082805640315, 1685460823266675, 6745232212623451]