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.

A109378 Semiprimes at Levenshtein distance n from previous value when considered as a decimal string.

Table of values

n a(n)
0 4
1 6
2 10
3 221
4 1003
5 22226
6 100001
7 2222245
8 10000001
9 222222223
10 1000000006
11 2222222227
12 100000000013
13 2222222222249
14 10000000000015
15 222222222222223
16 10000000000000031
17 22222222222222229
18 100000000000000015

List of values

[4, 6, 10, 221, 1003, 22226, 100001, 2222245, 10000001, 222222223, 1000000006, 2222222227, 100000000013, 2222222222249, 10000000000015, 222222222222223, 10000000000000031, 22222222222222229, 100000000000000015]

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

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