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.

A277441 Least number k such that k^2 can be obtained from k by inserting n internal (but not necessarily contiguous) digits.

Table of values

n a(n)
0 0
1 10
2 95
3 950
4 9500
5 89476
6 894760
7 8946105
8 89448001
9 894438005
10 8944300005
11 89442827780
12 894427300005
13 8944273000005
14 89442720000005
15 894427196000005
16 8944271912400005
17 89442719120000005
18 894427191000000005
19 8944271910000000005
20 89442719100000000005
21 894427191000000000005

List of values

[0, 10, 95, 950, 9500, 89476, 894760, 8946105, 89448001, 894438005, 8944300005, 89442827780, 894427300005, 8944273000005, 89442720000005, 894427196000005, 8944271912400005, 89442719120000005, 894427191000000005, 8944271910000000005, 89442719100000000005, 894427191000000000005]

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

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