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.

A040017 Prime 3 followed by unique period primes (the period r of 1/p is not shared with any other prime) of the form A019328(r)/gcd(A019328(r),r) in order (periods r are given in A051627).

Table of values

n a(n)
1 3
2 11
3 37
4 101
5 9091
6 9901
7 333667
8 909091
9 99990001
10 999999000001
11 9999999900000001
12 909090909090909091
13 1111111111111111111
14 11111111111111111111111
15 900900900900990990990991
16 909090909090909090909090909091

List of values

[3, 11, 37, 101, 9091, 9901, 333667, 909091, 99990001, 999999000001, 9999999900000001, 909090909090909091, 1111111111111111111, 11111111111111111111111, 900900900900990990990991, 909090909090909090909090909091]

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

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