A307122 - cp's OEIS frontend

A307122 3-deficient numbers with increasing abundancy: Numbers k such that sigma(m)/m < sigma(k)/k < 3 for all numbers m < k such that sigma(m)/m < 3.

n	a(n)
1	1
2	2
3	4
4	6
5	12
6	24
7	36
8	48
9	60
10	168
11	252
12	300
13	336
14	630
15	2268
16	2310
17	5472
18	6804
19	20412
20	47424
21	61236
22	161304
23	183708
24	486096
25	551124
26	1215216
27	1653372
28	4081104
29	4960116
30	14880348
31	44641044
32	133923132
33	401769396
34	1205308188
35	1631268870
36	3615924564
37	10847773692

[1, 2, 4, 6, 12, 24, 36, 48, 60, 168, 252, 300, 336, 630, 2268, 2310, 5472, 6804, 20412, 47424, 61236, 161304, 183708, 486096, 551124, 1215216, 1653372, 4081104, 4960116, 14880348, 44641044, 133923132, 401769396, 1205308188, 1631268870, 3615924564, 10847773692]

cp's OEIS Frontend

A307122 3-deficient numbers with increasing abundancy: Numbers k such that sigma(m)/m < sigma(k)/k < 3 for all numbers m < k such that sigma(m)/m < 3.

Table of values

List of values