A358786 - cp's OEIS frontend

A358786 a(1) = 1. For n > 1, a(n) is least novel k != n such that rad(k) = rad(n) and either k | n or n | k, where rad is A007947.

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

[1, 4, 9, 2, 25, 12, 49, 16, 3, 20, 121, 6, 169, 28, 45, 8, 289, 36, 361, 10, 63, 44, 529, 48, 5, 52, 81, 14, 841, 60, 961, 64, 99, 68, 175, 18, 1369, 76, 117, 80, 1681, 84, 1849, 22, 15, 92, 2209, 24, 7, 100, 153, 26, 2809, 108, 275, 112, 171, 116, 3481, 30, 3721]

cp's OEIS Frontend

A358786 a(1) = 1. For n > 1, a(n) is least novel k != n such that rad(k) = rad(n) and either k | n or n | k, where rad is A007947.

Table of values

List of values