A346635 - cp's OEIS frontend

A346635 Numbers whose division (or multiplication) by their greatest prime factor yields a perfect square. Numbers k such that k*A006530(k) is a perfect square.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	28
16	29
17	31
18	32
19	37
20	41
21	43
22	44
23	45
24	47
25	48
26	52
27	53
28	59
29	61
30	63
31	67
32	68
33	71
34	73
35	76
36	79
37	80
38	83
39	89
40	92
41	97
42	99
43	101
44	103
45	107
46	108
47	109
48	112
49	113
50	116
51	117
52	124
53	125
54	127
55	128
56	131
57	137
58	139
59	148
60	149
61	151
62	153

[1, 2, 3, 5, 7, 8, 11, 12, 13, 17, 19, 20, 23, 27, 28, 29, 31, 32, 37, 41, 43, 44, 45, 47, 48, 52, 53, 59, 61, 63, 67, 68, 71, 73, 76, 79, 80, 83, 89, 92, 97, 99, 101, 103, 107, 108, 109, 112, 113, 116, 117, 124, 125, 127, 128, 131, 137, 139, 148, 149, 151, 153]

cp's OEIS Frontend

A346635 Numbers whose division (or multiplication) by their greatest prime factor yields a perfect square. Numbers k such that k*A006530(k) is a perfect square.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	28
16	29
17	31
18	32
19	37
20	41
21	43
22	44
23	45
24	47
25	48
26	52
27	53
28	59
29	61
30	63
31	67
32	68
33	71
34	73
35	76
36	79
37	80
38	83
39	89
40	92
41	97
42	99
43	101
44	103
45	107
46	108
47	109
48	112
49	113
50	116
51	117
52	124
53	125
54	127
55	128
56	131
57	137
58	139
59	148
60	149
61	151
62	153

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	28
16	29
17	31
18	32
19	37
20	41
21	43
22	44
23	45
24	47
25	48
26	52
27	53
28	59
29	61
30	63
31	67
32	68
33	71
34	73
35	76
36	79
37	80
38	83
39	89
40	92
41	97
42	99
43	101
44	103
45	107
46	108
47	109
48	112
49	113
50	116
51	117
52	124
53	125
54	127
55	128
56	131
57	137
58	139
59	148
60	149
61	151
62	153

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	28
16	29
17	31
18	32
19	37
20	41
21	43
22	44
23	45
24	47
25	48
26	52
27	53
28	59
29	61
30	63
31	67
32	68
33	71
34	73
35	76
36	79
37	80
38	83
39	89
40	92
41	97
42	99
43	101
44	103
45	107
46	108
47	109
48	112
49	113
50	116
51	117
52	124
53	125
54	127
55	128
56	131
57	137
58	139
59	148
60	149
61	151
62	153