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.

A337479 Primitive elements of A337386: numbers k for which sigma(A003961(k)) >= 2*A003961(k), but none of the proper divisors of k satisfy the same condition.

Table of values

n a(n)
1 120
2 180
3 300
4 420
5 504
6 630
7 660
8 780
9 924
10 990
11 1020
12 1050
13 1092
14 1140
15 1170
16 1380
17 1470
18 1650
19 1740
20 1860
21 2220
22 2310
23 2460
24 2580
25 2730
26 2820
27 2856
28 3168
29 3180
30 3192
31 3432
32 3540
33 3570
34 3660
35 3864
36 3990
37 4020
38 4260
39 4284
40 4290
41 4380
42 4488
43 4590
44 4740
45 4752
46 4788
47 4830

List of values

[120, 180, 300, 420, 504, 630, 660, 780, 924, 990, 1020, 1050, 1092, 1140, 1170, 1380, 1470, 1650, 1740, 1860, 2220, 2310, 2460, 2580, 2730, 2820, 2856, 3168, 3180, 3192, 3432, 3540, 3570, 3660, 3864, 3990, 4020, 4260, 4284, 4290, 4380, 4488, 4590, 4740, 4752, 4788, 4830]