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.

A064535 a(n) = (2^prime(n)-2)/prime(n); a(0) = 0 by convention.

Table of values

n a(n)
0 0
1 1
2 2
3 6
4 18
5 186
6 630
7 7710
8 27594
9 364722
10 18512790
11 69273666
12 3714566310
13 53634713550
14 204560302842
15 2994414645858
16 169947155749830
17 9770521225481754
18 37800705069076950
19 2202596307308603178
20 33256101992039755026
21 129379903640264252430

List of values

[0, 1, 2, 6, 18, 186, 630, 7710, 27594, 364722, 18512790, 69273666, 3714566310, 53634713550, 204560302842, 2994414645858, 169947155749830, 9770521225481754, 37800705069076950, 2202596307308603178, 33256101992039755026, 129379903640264252430]

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

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