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.

A069043 Composite numbers k with no prime factor among (2, 3) (cf. A038509) and such that phi(k) < 2*k/3.

Table of values

n a(n)
1 385
2 455
3 595
4 665
5 805
6 1015
7 1085
8 1925
9 2275
10 2695
11 2975
12 3185
13 3325
14 4025
15 4165
16 4235
17 4655
18 5005
19 5075
20 5425
21 5635
22 5915
23 6545
24 7105
25 7315
26 7595
27 7735
28 8645
29 8855
30 9625
31 10115
32 10465
33 11165
34 11305
35 11375
36 11935
37 12155
38 12635
39 13195
40 13475

List of values

[385, 455, 595, 665, 805, 1015, 1085, 1925, 2275, 2695, 2975, 3185, 3325, 4025, 4165, 4235, 4655, 5005, 5075, 5425, 5635, 5915, 6545, 7105, 7315, 7595, 7735, 8645, 8855, 9625, 10115, 10465, 11165, 11305, 11375, 11935, 12155, 12635, 13195, 13475]