A355571 - cp's OEIS frontend

A355571 Complement of A007956: numbers not of the form P(k)/k where P(n) is the product of the divisors of n.

n	a(n)
1	4
2	9
3	12
4	16
5	18
6	20
7	24
8	25
9	28
10	30
11	32
12	36
13	40
14	42
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	66
26	68
27	70
28	72
29	75
30	76
31	78
32	80
33	81
34	84
35	88
36	90
37	92
38	96
39	98
40	99
41	100
42	102
43	104
44	105
45	108
46	110
47	112
48	114
49	116
50	117
51	120
52	121
53	124
54	126
55	128
56	130
57	132
58	135
59	136
60	138
61	140
62	147
63	148
64	150
65	152

[4, 9, 12, 16, 18, 20, 24, 25, 28, 30, 32, 36, 40, 42, 44, 45, 48, 49, 50, 52, 54, 56, 60, 63, 66, 68, 70, 72, 75, 76, 78, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 116, 117, 120, 121, 124, 126, 128, 130, 132, 135, 136, 138, 140, 147, 148, 150, 152]

cp's OEIS Frontend

A355571 Complement of A007956: numbers not of the form P(k)/k where P(n) is the product of the divisors of n.

Table of values

List of values

n	a(n)
1	4
2	9
3	12
4	16
5	18
6	20
7	24
8	25
9	28
10	30
11	32
12	36
13	40
14	42
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	66
26	68
27	70
28	72
29	75
30	76
31	78
32	80
33	81
34	84
35	88
36	90
37	92
38	96
39	98
40	99
41	100
42	102
43	104
44	105
45	108
46	110
47	112
48	114
49	116
50	117
51	120
52	121
53	124
54	126
55	128
56	130
57	132
58	135
59	136
60	138
61	140
62	147
63	148
64	150
65	152

n	a(n)
1	4
2	9
3	12
4	16
5	18
6	20
7	24
8	25
9	28
10	30
11	32
12	36
13	40
14	42
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	66
26	68
27	70
28	72
29	75
30	76
31	78
32	80
33	81
34	84
35	88
36	90
37	92
38	96
39	98
40	99
41	100
42	102
43	104
44	105
45	108
46	110
47	112
48	114
49	116
50	117
51	120
52	121
53	124
54	126
55	128
56	130
57	132
58	135
59	136
60	138
61	140
62	147
63	148
64	150
65	152

n	a(n)
1	4
2	9
3	12
4	16
5	18
6	20
7	24
8	25
9	28
10	30
11	32
12	36
13	40
14	42
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	66
26	68
27	70
28	72
29	75
30	76
31	78
32	80
33	81
34	84
35	88
36	90
37	92
38	96
39	98
40	99
41	100
42	102
43	104
44	105
45	108
46	110
47	112
48	114
49	116
50	117
51	120
52	121
53	124
54	126
55	128
56	130
57	132
58	135
59	136
60	138
61	140
62	147
63	148
64	150
65	152