A198512 - cp's OEIS frontend

A198512 Half the difference between an odd squarefree semiprime's factors.

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	7
7	3
8	8
9	4
10	10
11	2
12	6
13	13
14	3
15	14
16	7
17	17
18	9
19	5
20	19
21	20
22	6
23	22
24	1
25	12
26	13
27	25
28	8
29	28
30	29
31	16
32	3
33	32
34	11
35	18
36	4
37	34
38	19
39	12
40	35
41	2
42	21
43	38
44	3
45	40
46	6
47	15
48	24
49	43
50	17
51	47
52	27
53	5
54	18
55	28
56	9
57	1
58	20
59	31
60	10

[1, 2, 4, 1, 5, 7, 3, 8, 4, 10, 2, 6, 13, 3, 14, 7, 17, 9, 5, 19, 20, 6, 22, 1, 12, 13, 25, 8, 28, 29, 16, 3, 32, 11, 18, 4, 34, 19, 12, 35, 2, 21, 38, 3, 40, 6, 15, 24, 43, 17, 47, 27, 5, 18, 28, 9, 1, 20, 31, 10]

cp's OEIS Frontend

A198512 Half the difference between an odd squarefree semiprime's factors.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	7
7	3
8	8
9	4
10	10
11	2
12	6
13	13
14	3
15	14
16	7
17	17
18	9
19	5
20	19
21	20
22	6
23	22
24	1
25	12
26	13
27	25
28	8
29	28
30	29
31	16
32	3
33	32
34	11
35	18
36	4
37	34
38	19
39	12
40	35
41	2
42	21
43	38
44	3
45	40
46	6
47	15
48	24
49	43
50	17
51	47
52	27
53	5
54	18
55	28
56	9
57	1
58	20
59	31
60	10

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	7
7	3
8	8
9	4
10	10
11	2
12	6
13	13
14	3
15	14
16	7
17	17
18	9
19	5
20	19
21	20
22	6
23	22
24	1
25	12
26	13
27	25
28	8
29	28
30	29
31	16
32	3
33	32
34	11
35	18
36	4
37	34
38	19
39	12
40	35
41	2
42	21
43	38
44	3
45	40
46	6
47	15
48	24
49	43
50	17
51	47
52	27
53	5
54	18
55	28
56	9
57	1
58	20
59	31
60	10

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	7
7	3
8	8
9	4
10	10
11	2
12	6
13	13
14	3
15	14
16	7
17	17
18	9
19	5
20	19
21	20
22	6
23	22
24	1
25	12
26	13
27	25
28	8
29	28
30	29
31	16
32	3
33	32
34	11
35	18
36	4
37	34
38	19
39	12
40	35
41	2
42	21
43	38
44	3
45	40
46	6
47	15
48	24
49	43
50	17
51	47
52	27
53	5
54	18
55	28
56	9
57	1
58	20
59	31
60	10