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.

A355475 Numbers that are sparsely totient (A036913) and of least prime signature (A025487).

Table of values

n a(n)
1 2
2 6
3 12
4 30
5 60
6 120
7 210
8 240
9 420
10 840
11 1260
12 1680
13 2310
14 4620
15 9240
16 13860
17 18480
18 30030
19 60060
20 120120
21 180180
22 240240
23 360360
24 510510
25 1021020
26 2042040
27 3063060
28 4084080
29 6126120
30 8168160
31 9699690
32 12252240
33 19399380
34 38798760
35 58198140
36 77597520

List of values

[2, 6, 12, 30, 60, 120, 210, 240, 420, 840, 1260, 1680, 2310, 4620, 9240, 13860, 18480, 30030, 60060, 120120, 180180, 240240, 360360, 510510, 1021020, 2042040, 3063060, 4084080, 6126120, 8168160, 9699690, 12252240, 19399380, 38798760, 58198140, 77597520]