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.

A206011 The n-th semiprime minus its sum of digits.

Table of values

n a(n)
1 0
2 0
3 0
4 9
5 9
6 9
7 18
8 18
9 18
10 18
11 27
12 27
13 27
14 27
15 27
16 36
17 36
18 45
19 45
20 45
21 45
22 54
23 54
24 54
25 63
26 63
27 72
28 72
29 72
30 72
31 81
32 81
33 81
34 81
35 99
36 108
37 108
38 108
39 108
40 117
41 117
42 117
43 117
44 126
45 126
46 135
47 135
48 135
49 135
50 135
51 144
52 144
53 144
54 153
55 153
56 153
57 162
58 162
59 171
60 171

List of values

[0, 0, 0, 9, 9, 9, 18, 18, 18, 18, 27, 27, 27, 27, 27, 36, 36, 45, 45, 45, 45, 54, 54, 54, 63, 63, 72, 72, 72, 72, 81, 81, 81, 81, 99, 108, 108, 108, 108, 117, 117, 117, 117, 126, 126, 135, 135, 135, 135, 135, 144, 144, 144, 153, 153, 153, 162, 162, 171, 171]