A200521 - cp's OEIS frontend

A200521 Numbers n such that omega(n)=4 but bigomega(n)>4, i.e., having exactly 4 distinct prime factors, but at least one of these with multiplicity > 1.

n	a(n)
1	420
2	630
3	660
4	780
5	840
6	924
7	990
8	1020
9	1050
10	1092
11	1140
12	1170
13	1260
14	1320
15	1380
16	1386
17	1428
18	1470
19	1530
20	1540
21	1560
22	1596
23	1638
24	1650
25	1680
26	1710
27	1716
28	1740
29	1820
30	1848
31	1860
32	1890
33	1932
34	1950
35	1980
36	2040
37	2070
38	2100
39	2142
40	2184
41	2220
42	2244

[420, 630, 660, 780, 840, 924, 990, 1020, 1050, 1092, 1140, 1170, 1260, 1320, 1380, 1386, 1428, 1470, 1530, 1540, 1560, 1596, 1638, 1650, 1680, 1710, 1716, 1740, 1820, 1848, 1860, 1890, 1932, 1950, 1980, 2040, 2070, 2100, 2142, 2184, 2220, 2244]

cp's OEIS Frontend

A200521 Numbers n such that omega(n)=4 but bigomega(n)>4, i.e., having exactly 4 distinct prime factors, but at least one of these with multiplicity > 1.

Table of values

List of values