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.

A136927 Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 6.

Table of values

n a(n)
1 0
2 6
3 60
4 66
5 600
6 656
7 660
8 666
9 6000
10 6560
11 6600
12 6660
13 6666
14 60000
15 63566
16 65600
17 66000
18 66600
19 66660
20 66666
21 600000
22 603656
23 604434
24 635660
25 656000
26 660000
27 660656
28 666000
29 666600
30 666660
31 666666
32 6000000
33 6036560
34 6044340
35 6356600
36 6560000
37 6600000
38 6606560
39 6660000
40 6666000
41 6666600
42 6666660
43 6666666
44 60000000
45 60054434
46 60365600

List of values

[0, 6, 60, 66, 600, 656, 660, 666, 6000, 6560, 6600, 6660, 6666, 60000, 63566, 65600, 66000, 66600, 66660, 66666, 600000, 603656, 604434, 635660, 656000, 660000, 660656, 666000, 666600, 666660, 666666, 6000000, 6036560, 6044340, 6356600, 6560000, 6600000, 6606560, 6660000, 6666000, 6666600, 6666660, 6666666, 60000000, 60054434, 60365600]

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

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