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.

A272884 Squares whose digits are powers of 2.

Table of values

n a(n)
1 1
2 4
3 81
4 121
5 144
6 441
7 484
8 841
9 1444
10 8281
11 11881
12 14884
13 28224
14 48841
15 114244
16 128881
17 142884
18 221841
19 228484
20 848241
21 1121481
22 1281424
23 1418481
24 2184484
25 2214144
26 8282884
27 11142244
28 11282881
29 18241441
30 18818244
31 18844281
32 21242881
33 21818241
34 28281124
35 82428241
36 121242121
37 121484484
38 124121881

List of values

[1, 4, 81, 121, 144, 441, 484, 841, 1444, 8281, 11881, 14884, 28224, 48841, 114244, 128881, 142884, 221841, 228484, 848241, 1121481, 1281424, 1418481, 2184484, 2214144, 8282884, 11142244, 11282881, 18241441, 18818244, 18844281, 21242881, 21818241, 28281124, 82428241, 121242121, 121484484, 124121881]

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

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