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.

A195156 a(n) = (16^n-1)/3.

Table of values

n a(n)
0 0
1 5
2 85
3 1365
4 21845
5 349525
6 5592405
7 89478485
8 1431655765
9 22906492245
10 366503875925
11 5864062014805
12 93824992236885
13 1501199875790165
14 24019198012642645
15 384307168202282325
16 6148914691236517205
17 98382635059784275285
18 1574122160956548404565

List of values

[0, 5, 85, 1365, 21845, 349525, 5592405, 89478485, 1431655765, 22906492245, 366503875925, 5864062014805, 93824992236885, 1501199875790165, 24019198012642645, 384307168202282325, 6148914691236517205, 98382635059784275285, 1574122160956548404565]