A241646 - cp's OEIS frontend

A241646 Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 1.

n	a(n)
1	1
2	12
3	18
4	24
5	31
6	32
7	42
8	48
9	54
10	56
11	60
12	72
13	80
14	84
15	90
16	96
17	98
18	104
19	108
20	114
21	120
22	128
23	132
24	140
25	144
26	152
27	156
28	168
29	180
30	182
31	192
32	216
33	224
34	228
35	234
36	240
37	248
38	252
39	264
40	270
41	272
42	280
43	288
44	294
45	308
46	312
47	324
48	336
49	342
50	360
51	372
52	384
53	390
54	408
55	420

[1, 12, 18, 24, 31, 32, 42, 48, 54, 56, 60, 72, 80, 84, 90, 96, 98, 104, 108, 114, 120, 128, 132, 140, 144, 152, 156, 168, 180, 182, 192, 216, 224, 228, 234, 240, 248, 252, 264, 270, 272, 280, 288, 294, 308, 312, 324, 336, 342, 360, 372, 384, 390, 408, 420]

cp's OEIS Frontend

A241646 Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 1.

Table of values

List of values

n	a(n)
1	1
2	12
3	18
4	24
5	31
6	32
7	42
8	48
9	54
10	56
11	60
12	72
13	80
14	84
15	90
16	96
17	98
18	104
19	108
20	114
21	120
22	128
23	132
24	140
25	144
26	152
27	156
28	168
29	180
30	182
31	192
32	216
33	224
34	228
35	234
36	240
37	248
38	252
39	264
40	270
41	272
42	280
43	288
44	294
45	308
46	312
47	324
48	336
49	342
50	360
51	372
52	384
53	390
54	408
55	420

n	a(n)
1	1
2	12
3	18
4	24
5	31
6	32
7	42
8	48
9	54
10	56
11	60
12	72
13	80
14	84
15	90
16	96
17	98
18	104
19	108
20	114
21	120
22	128
23	132
24	140
25	144
26	152
27	156
28	168
29	180
30	182
31	192
32	216
33	224
34	228
35	234
36	240
37	248
38	252
39	264
40	270
41	272
42	280
43	288
44	294
45	308
46	312
47	324
48	336
49	342
50	360
51	372
52	384
53	390
54	408
55	420

n	a(n)
1	1
2	12
3	18
4	24
5	31
6	32
7	42
8	48
9	54
10	56
11	60
12	72
13	80
14	84
15	90
16	96
17	98
18	104
19	108
20	114
21	120
22	128
23	132
24	140
25	144
26	152
27	156
28	168
29	180
30	182
31	192
32	216
33	224
34	228
35	234
36	240
37	248
38	252
39	264
40	270
41	272
42	280
43	288
44	294
45	308
46	312
47	324
48	336
49	342
50	360
51	372
52	384
53	390
54	408
55	420