A309943 - cp's OEIS frontend

A309943 Numbers k such that k * d(k) > j * d(j) for all j < k, where d(k) is the number of divisors of k (A000005).

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	10
8	12
9	16
10	18
11	20
12	24
13	30
14	36
15	42
16	48
17	60
18	72
19	84
20	90
21	96
22	108
23	120
24	144
25	168
26	180
27	210
28	216
29	240
30	288
31	300
32	336
33	360
34	420
35	480
36	504
37	540
38	600
39	630
40	660
41	672
42	720
43	840
44	1008
45	1080
46	1200
47	1260
48	1440
49	1680
50	1980
51	2016
52	2100
53	2160
54	2520
55	3120

[1, 2, 3, 4, 6, 8, 10, 12, 16, 18, 20, 24, 30, 36, 42, 48, 60, 72, 84, 90, 96, 108, 120, 144, 168, 180, 210, 216, 240, 288, 300, 336, 360, 420, 480, 504, 540, 600, 630, 660, 672, 720, 840, 1008, 1080, 1200, 1260, 1440, 1680, 1980, 2016, 2100, 2160, 2520, 3120]

cp's OEIS Frontend

A309943 Numbers k such that k * d(k) > j * d(j) for all j < k, where d(k) is the number of divisors of k (A000005).

Table of values

List of values