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.

A062887 Smallest multiple of 2n+1 with the property that its digits are odd and each digit is two less (mod 10) than the previous digit, or 0 if no such number exists.

Table of values

n a(n)
0 1
1 3
2 5
3 7
4 9
5 319
6 975
7 75
8 7531
9 19
10 197531975319
11 3197
12 75
13 5319
14 319
15 31
16 3197531975319
17 53197531975
18 1975319
19 975
20 531975
21 1975319753197
22 19753197531975
23 75319753197531
24 319753197531975319
25 753197531975319753

List of values

[1, 3, 5, 7, 9, 319, 975, 75, 7531, 19, 197531975319, 3197, 75, 5319, 319, 31, 3197531975319, 53197531975, 1975319, 975, 531975, 1975319753197, 19753197531975, 75319753197531, 319753197531975319, 753197531975319753]