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.

A037428 Positive numbers having the same set of digits in base 4 and base 10.

Table of values

n a(n)
1 1
2 2
3 3
4 13
5 31
6 123
7 203
8 231
9 1031
10 1103
11 1120
12 1203
13 1230
14 1303
15 2103
16 2120
17 2201
18 2300
19 2301
20 2302
21 2303
22 3012
23 3020
24 3021
25 3022
26 3023
27 3100
28 3101
29 3102
30 3103
31 3200
32 3201
33 3202
34 3203
35 3320
36 10023
37 10032
38 10123
39 10132
40 10232
41 10323
42 10332

List of values

[1, 2, 3, 13, 31, 123, 203, 231, 1031, 1103, 1120, 1203, 1230, 1303, 2103, 2120, 2201, 2300, 2301, 2302, 2303, 3012, 3020, 3021, 3022, 3023, 3100, 3101, 3102, 3103, 3200, 3201, 3202, 3203, 3320, 10023, 10032, 10123, 10132, 10232, 10323, 10332]