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.

A086558 Smallest n-digit number beginning with n and having prime signature of n, or 0 if no such number exists.

Table of values

n a(n)
1 1
2 23
3 307
4 4489
5 50021
6 600007
7 7000003
8 80062991
9 900660121
10 1000000006
11 11000000021
12 120000000004
13 1300000000021
14 14000000000001
15 150000000000017
16 1604502443050081
17 17000000000000009
18 180000000000000027

List of values

[1, 23, 307, 4489, 50021, 600007, 7000003, 80062991, 900660121, 1000000006, 11000000021, 120000000004, 1300000000021, 14000000000001, 150000000000017, 1604502443050081, 17000000000000009, 180000000000000027]

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

Content is available under The OEIS End-User License Agreement.