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.

A369419 Numbers k that are neither squarefree nor prime powers such that A119288(k) <= k/A007947(k) < A053669(k) and A007947(k) is not a primorial.

Table of values

n a(n)
1 18
2 90
3 150
4 630
5 1050
6 1470
7 1890
8 2100
9 6930
10 11550
11 16170
12 20790
13 23100
14 25410
15 90090
16 150150
17 210210
18 270270
19 300300
20 330330
21 390390
22 420420
23 450450
24 1531530
25 2552550
26 3573570
27 4594590
28 5105100
29 5615610
30 6636630
31 7147140
32 7657650
33 8678670
34 9189180
35 29099070

List of values

[18, 90, 150, 630, 1050, 1470, 1890, 2100, 6930, 11550, 16170, 20790, 23100, 25410, 90090, 150150, 210210, 270270, 300300, 330330, 390390, 420420, 450450, 1531530, 2552550, 3573570, 4594590, 5105100, 5615610, 6636630, 7147140, 7657650, 8678670, 9189180, 29099070]