A336559 - cp's OEIS frontend

A336559 Numbers k, not powers of primes, such that A336456(k) = Product_{p^e|k} A336456(p^e). Here each p^e is the maximal power of prime p that divides k, and A336456(k) = A335915(sigma(sigma(k))).

n	a(n)
1	6
2	12
3	14
4	15
5	18
6	20
7	24
8	26
9	28
10	36
11	38
12	39
13	44
14	45
15	48
16	50
17	51
18	54
19	56
20	60
21	62
22	63
23	68
24	72
25	74
26	75
27	76
28	78
29	80
30	86
31	87
32	92
33	95
34	96
35	99
36	100
37	104
38	108
39	111
40	112
41	116
42	117
43	122
44	123
45	124
46	126
47	134
48	143
49	144
50	146
51	147
52	148
53	150
54	153
55	158
56	159
57	162
58	171
59	172
60	175
61	176
62	180
63	183
64	188
65	192
66	194
67	196
68	200
69	204
70	206
71	207

[6, 12, 14, 15, 18, 20, 24, 26, 28, 36, 38, 39, 44, 45, 48, 50, 51, 54, 56, 60, 62, 63, 68, 72, 74, 75, 76, 78, 80, 86, 87, 92, 95, 96, 99, 100, 104, 108, 111, 112, 116, 117, 122, 123, 124, 126, 134, 143, 144, 146, 147, 148, 150, 153, 158, 159, 162, 171, 172, 175, 176, 180, 183, 188, 192, 194, 196, 200, 204, 206, 207]

cp's OEIS Frontend

A336559 Numbers k, not powers of primes, such that A336456(k) = Product_{p^e|k} A336456(p^e). Here each p^e is the maximal power of prime p that divides k, and A336456(k) = A335915(sigma(sigma(k))).

Table of values

List of values

n	a(n)
1	6
2	12
3	14
4	15
5	18
6	20
7	24
8	26
9	28
10	36
11	38
12	39
13	44
14	45
15	48
16	50
17	51
18	54
19	56
20	60
21	62
22	63
23	68
24	72
25	74
26	75
27	76
28	78
29	80
30	86
31	87
32	92
33	95
34	96
35	99
36	100
37	104
38	108
39	111
40	112
41	116
42	117
43	122
44	123
45	124
46	126
47	134
48	143
49	144
50	146
51	147
52	148
53	150
54	153
55	158
56	159
57	162
58	171
59	172
60	175
61	176
62	180
63	183
64	188
65	192
66	194
67	196
68	200
69	204
70	206
71	207

n	a(n)
1	6
2	12
3	14
4	15
5	18
6	20
7	24
8	26
9	28
10	36
11	38
12	39
13	44
14	45
15	48
16	50
17	51
18	54
19	56
20	60
21	62
22	63
23	68
24	72
25	74
26	75
27	76
28	78
29	80
30	86
31	87
32	92
33	95
34	96
35	99
36	100
37	104
38	108
39	111
40	112
41	116
42	117
43	122
44	123
45	124
46	126
47	134
48	143
49	144
50	146
51	147
52	148
53	150
54	153
55	158
56	159
57	162
58	171
59	172
60	175
61	176
62	180
63	183
64	188
65	192
66	194
67	196
68	200
69	204
70	206
71	207

n	a(n)
1	6
2	12
3	14
4	15
5	18
6	20
7	24
8	26
9	28
10	36
11	38
12	39
13	44
14	45
15	48
16	50
17	51
18	54
19	56
20	60
21	62
22	63
23	68
24	72
25	74
26	75
27	76
28	78
29	80
30	86
31	87
32	92
33	95
34	96
35	99
36	100
37	104
38	108
39	111
40	112
41	116
42	117
43	122
44	123
45	124
46	126
47	134
48	143
49	144
50	146
51	147
52	148
53	150
54	153
55	158
56	159
57	162
58	171
59	172
60	175
61	176
62	180
63	183
64	188
65	192
66	194
67	196
68	200
69	204
70	206
71	207