A122824 - cp's OEIS frontend

A122824 Prime(semiprime(n)) - semiprime(prime(n)). Commutator [A000040,A001358] at n.

n	a(n)
1	1
2	4
3	9
4	8
5	10
6	12
7	24
8	24
9	32
10	15
11	46
12	24
13	27
14	34
15	25
16	40
17	44
18	46
19	51
20	54
21	53
22	46
23	54
24	60
25	70
26	70
27	98
28	105
29	104
30	91
31	64
32	72
33	45
34	48
35	95
36	118
37	120
38	120
39	116
40	108
41	100
42	96
43	101
44	118
45	102
46	144
47	123
48	86
49	76
50	81
51	136
52	138
53	143
54	112
55	132
56	131
57	153
58	160
59	171
60	169

[1, 4, 9, 8, 10, 12, 24, 24, 32, 15, 46, 24, 27, 34, 25, 40, 44, 46, 51, 54, 53, 46, 54, 60, 70, 70, 98, 105, 104, 91, 64, 72, 45, 48, 95, 118, 120, 120, 116, 108, 100, 96, 101, 118, 102, 144, 123, 86, 76, 81, 136, 138, 143, 112, 132, 131, 153, 160, 171, 169]

cp's OEIS Frontend

A122824 Prime(semiprime(n)) - semiprime(prime(n)). Commutator [A000040,A001358] at n.

Table of values

List of values

n	a(n)
1	1
2	4
3	9
4	8
5	10
6	12
7	24
8	24
9	32
10	15
11	46
12	24
13	27
14	34
15	25
16	40
17	44
18	46
19	51
20	54
21	53
22	46
23	54
24	60
25	70
26	70
27	98
28	105
29	104
30	91
31	64
32	72
33	45
34	48
35	95
36	118
37	120
38	120
39	116
40	108
41	100
42	96
43	101
44	118
45	102
46	144
47	123
48	86
49	76
50	81
51	136
52	138
53	143
54	112
55	132
56	131
57	153
58	160
59	171
60	169

n	a(n)
1	1
2	4
3	9
4	8
5	10
6	12
7	24
8	24
9	32
10	15
11	46
12	24
13	27
14	34
15	25
16	40
17	44
18	46
19	51
20	54
21	53
22	46
23	54
24	60
25	70
26	70
27	98
28	105
29	104
30	91
31	64
32	72
33	45
34	48
35	95
36	118
37	120
38	120
39	116
40	108
41	100
42	96
43	101
44	118
45	102
46	144
47	123
48	86
49	76
50	81
51	136
52	138
53	143
54	112
55	132
56	131
57	153
58	160
59	171
60	169

n	a(n)
1	1
2	4
3	9
4	8
5	10
6	12
7	24
8	24
9	32
10	15
11	46
12	24
13	27
14	34
15	25
16	40
17	44
18	46
19	51
20	54
21	53
22	46
23	54
24	60
25	70
26	70
27	98
28	105
29	104
30	91
31	64
32	72
33	45
34	48
35	95
36	118
37	120
38	120
39	116
40	108
41	100
42	96
43	101
44	118
45	102
46	144
47	123
48	86
49	76
50	81
51	136
52	138
53	143
54	112
55	132
56	131
57	153
58	160
59	171
60	169