A156759 - cp's OEIS frontend

A156759 a(1)=2, a(n+1) is the smallest composite number > a(n) with smallest prime factor >= smallest prime factor of a(n).

n	a(n)
1	2
2	4
3	6
4	8
5	9
6	15
7	21
8	25
9	35
10	49
11	77
12	91
13	119
14	121
15	143
16	169
17	221
18	247
19	289
20	323
21	361
22	437
23	529
24	667
25	713
26	841
27	899
28	961
29	1147
30	1271
31	1333
32	1369
33	1517
34	1591
35	1681
36	1763
37	1849
38	2021
39	2209
40	2491
41	2773
42	2809
43	3127
44	3233
45	3481
46	3599
47	3721
48	4087
49	4331
50	4453
51	4489

[2, 4, 6, 8, 9, 15, 21, 25, 35, 49, 77, 91, 119, 121, 143, 169, 221, 247, 289, 323, 361, 437, 529, 667, 713, 841, 899, 961, 1147, 1271, 1333, 1369, 1517, 1591, 1681, 1763, 1849, 2021, 2209, 2491, 2773, 2809, 3127, 3233, 3481, 3599, 3721, 4087, 4331, 4453, 4489]

cp's OEIS Frontend

A156759 a(1)=2, a(n+1) is the smallest composite number > a(n) with smallest prime factor >= smallest prime factor of a(n).

Table of values

List of values