A285109 - cp's OEIS frontend

A285109 a(n) = n multiplied by its smallest prime factor; a(1) = 1.

n	a(n)
1	1
2	4
3	9
4	8
5	25
6	12
7	49
8	16
9	27
10	20
11	121
12	24
13	169
14	28
15	45
16	32
17	289
18	36
19	361
20	40
21	63
22	44
23	529
24	48
25	125
26	52
27	81
28	56
29	841
30	60
31	961
32	64
33	99
34	68
35	175
36	72
37	1369
38	76
39	117
40	80
41	1681
42	84
43	1849
44	88
45	135
46	92
47	2209
48	96
49	343
50	100
51	153
52	104
53	2809
54	108
55	275
56	112
57	171
58	116
59	3481
60	120
61	3721
62	124
63	189
64	128
65	325
66	132
67	4489
68	136
69	207

[1, 4, 9, 8, 25, 12, 49, 16, 27, 20, 121, 24, 169, 28, 45, 32, 289, 36, 361, 40, 63, 44, 529, 48, 125, 52, 81, 56, 841, 60, 961, 64, 99, 68, 175, 72, 1369, 76, 117, 80, 1681, 84, 1849, 88, 135, 92, 2209, 96, 343, 100, 153, 104, 2809, 108, 275, 112, 171, 116, 3481, 120, 3721, 124, 189, 128, 325, 132, 4489, 136, 207]

cp's OEIS Frontend

A285109 a(n) = n multiplied by its smallest prime factor; a(1) = 1.

Table of values

List of values