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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.

A386017 Primes having only {0, 1, 2, 4} as digits.

Table of values

n a(n)
1 2
2 11
3 41
4 101
5 211
6 241
7 401
8 421
9 1021
10 1201
11 2011
12 2111
13 2141
14 2221
15 2411
16 2441
17 4001
18 4021
19 4111
20 4201
21 4211
22 4241
23 4421
24 4441
25 10111
26 10141
27 10211
28 11411
29 12011
30 12041
31 12101
32 12211
33 12241
34 12401
35 12421
36 14011
37 14221
38 14401
39 14411
40 20011
41 20021
42 20101
43 20201

List of values

[2, 11, 41, 101, 211, 241, 401, 421, 1021, 1201, 2011, 2111, 2141, 2221, 2411, 2441, 4001, 4021, 4111, 4201, 4211, 4241, 4421, 4441, 10111, 10141, 10211, 11411, 12011, 12041, 12101, 12211, 12241, 12401, 12421, 14011, 14221, 14401, 14411, 20011, 20021, 20101, 20201]

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

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