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.

A131109 a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n.

Table of values

n a(n)
1 9
2 4
3 6
4 10
5 69
6 15
7 26
8 169
9 146
10 237
11 95
12 1082
13 818
14 597
15 1603
16 2705
17 2078
18 4511
19 1418
20 2681
21 14545
22 13863
23 37551
24 6559
25 16053
26 55805
27 26707
28 17965
29 308918
30 32777
31 41222
32 35103
33 393565
34 219509
35 153263
36 87627
37 2263057
38 35981
39 1789339
40 741841
41 797542

List of values

[9, 4, 6, 10, 69, 15, 26, 169, 146, 237, 95, 1082, 818, 597, 1603, 2705, 2078, 4511, 1418, 2681, 14545, 13863, 37551, 6559, 16053, 55805, 26707, 17965, 308918, 32777, 41222, 35103, 393565, 219509, 153263, 87627, 2263057, 35981, 1789339, 741841, 797542]