A161990 - cp's OEIS frontend

A161990 Composites which have the same largest prime factor as their index.

n	a(n)
1	10
2	12
3	14
4	25
5	36
6	39
7	42
8	45
9	77
10	124
11	132
12	140
13	147
14	224
15	234
16	266
17	345
18	365
19	370
20	375
21	380
22	385
23	390
24	494
25	621
26	638
27	660
28	671
29	682
30	782
31	899
32	945
33	1001
34	1086
35	1140
36	1377
37	1558
38	1577
39	1628
40	1696
41	1728
42	1760
43	1798
44	1885
45	2046
46	2145
47	2484
48	2550
49	2970
50	3101
51	3122
52	3477

[10, 12, 14, 25, 36, 39, 42, 45, 77, 124, 132, 140, 147, 224, 234, 266, 345, 365, 370, 375, 380, 385, 390, 494, 621, 638, 660, 671, 682, 782, 899, 945, 1001, 1086, 1140, 1377, 1558, 1577, 1628, 1696, 1728, 1760, 1798, 1885, 2046, 2145, 2484, 2550, 2970, 3101, 3122, 3477]

cp's OEIS Frontend

A161990 Composites which have the same largest prime factor as their index.

Table of values

List of values