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.

A353342 Numbers k such that k and k^3 use only even digits.

Table of values

n a(n)
1 0
2 2
3 4
4 20
5 40
6 200
7 202
8 400
9 2000
10 2002
11 2020
12 4000
13 20000
14 20002
15 20020
16 20200
17 40000
18 200000
19 200002
20 200020
21 200200
22 202000
23 400000
24 2000000
25 2000002
26 2000020
27 2000200
28 2002000
29 2020000
30 4000000
31 20000000
32 20000002
33 20000020
34 20000200
35 20000202
36 20002000
37 20002002
38 20020000
39 20200000

List of values

[0, 2, 4, 20, 40, 200, 202, 400, 2000, 2002, 2020, 4000, 20000, 20002, 20020, 20200, 40000, 200000, 200002, 200020, 200200, 202000, 400000, 2000000, 2000002, 2000020, 2000200, 2002000, 2020000, 4000000, 20000000, 20000002, 20000020, 20000200, 20000202, 20002000, 20002002, 20020000, 20200000]

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

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