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.

A120729 Smallest integer k>0 such that k*10^n + 1 is a semiprime.

Table of values

n a(n)
0 3
1 2
2 2
3 5
4 1
5 1
6 1
7 1
8 1
9 2
10 4
11 2
12 3
13 7
14 4
15 3
16 6
17 6
18 4
19 1
20 2
21 4
22 13
23 2
24 4
25 3
26 7
27 21
28 6
29 9
30 3
31 1
32 5
33 4
34 16
35 19
36 28
37 19
38 9
39 3

List of values

[3, 2, 2, 5, 1, 1, 1, 1, 1, 2, 4, 2, 3, 7, 4, 3, 6, 6, 4, 1, 2, 4, 13, 2, 4, 3, 7, 21, 6, 9, 3, 1, 5, 4, 16, 19, 28, 19, 9, 3]