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.

A368049 Perfect squares whose decimal expansion consists of k > 1 digits, k-1 of which are equal.

Table of values

n a(n)
1 16
2 25
3 36
4 49
5 64
6 81
7 100
8 121
9 144
10 225
11 400
12 441
13 484
14 676
15 900
16 1444
17 10000
18 40000
19 44944
20 90000
21 1000000
22 4000000
23 9000000
24 100000000
25 400000000
26 900000000
27 10000000000
28 40000000000
29 90000000000
30 1000000000000
31 4000000000000
32 9000000000000
33 100000000000000

List of values

[16, 25, 36, 49, 64, 81, 100, 121, 144, 225, 400, 441, 484, 676, 900, 1444, 10000, 40000, 44944, 90000, 1000000, 4000000, 9000000, 100000000, 400000000, 900000000, 10000000000, 40000000000, 90000000000, 1000000000000, 4000000000000, 9000000000000, 100000000000000]

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

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