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.

A136892 Numbers k such that k and k^2 use only the digits 0, 2, 3, 6 and 7.

Table of values

n a(n)
1 0
2 6
3 26
4 60
5 260
6 600
7 606
8 2600
9 6000
10 6006
11 6060
12 26000
13 60000
14 60006
15 60060
16 60600
17 260000
18 270606
19 600000
20 600006
21 600060
22 600600
23 606000
24 2600000
25 2603326
26 2706060
27 6000000
28 6000006
29 6000060
30 6000600
31 6000606
32 6006000
33 6060000
34 6060006
35 26000000
36 26033260
37 27060600
38 60000000
39 60000006
40 60000060
41 60000600
42 60000606
43 60006000

List of values

[0, 6, 26, 60, 260, 600, 606, 2600, 6000, 6006, 6060, 26000, 60000, 60006, 60060, 60600, 260000, 270606, 600000, 600006, 600060, 600600, 606000, 2600000, 2603326, 2706060, 6000000, 6000006, 6000060, 6000600, 6000606, 6006000, 6060000, 6060006, 26000000, 26033260, 27060600, 60000000, 60000006, 60000060, 60000600, 60000606, 60006000]

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

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