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.

A105212 a(1) = 668; for n > 1, a(n) = a(n-1) + 1 + sum of distinct prime factors of a(n-1) that are < a(n-1).

Table of values

n a(n)
1 668
2 838
3 1260
4 1278
5 1355
6 1632
7 1655
8 1992
9 2081
10 2082
11 2435
12 2928
13 2995
14 3600
15 3611
16 3792
17 3877
18 3878
19 4165
20 4195
21 5040
22 5058
23 5345
24 6420
25 6538
26 7015
27 7105
28 7147
29 8176
30 8259
31 11016
32 11039
33 11149
34 11150
35 11381
36 12000
37 12011
38 12012
39 12049
40 12050

List of values

[668, 838, 1260, 1278, 1355, 1632, 1655, 1992, 2081, 2082, 2435, 2928, 2995, 3600, 3611, 3792, 3877, 3878, 4165, 4195, 5040, 5058, 5345, 6420, 6538, 7015, 7105, 7147, 8176, 8259, 11016, 11039, 11149, 11150, 11381, 12000, 12011, 12012, 12049, 12050]