A178313 - cp's OEIS frontend

A178313 Absolute difference between prime factors of n-th semiprime mod n.

n	a(n)
1	0
2	1
3	0
4	3
5	0
6	2
7	4
8	1
9	0
10	1
11	8
12	3
13	2
14	3
15	10
16	5
17	0
18	14
19	6
20	16
21	6
22	7
23	8
24	20
25	10
26	4
27	12
28	12
29	12
30	26
31	6
32	28
33	12
34	14
35	16
36	34
37	18
38	19
39	10
40	0
41	18
42	38
43	40
44	12
45	20
46	44
47	22
48	2
49	24
50	21
51	26
52	25
53	50
54	16
55	26
56	0
57	56
58	29
59	58
60	32
61	6
62	33
63	1
64	35
65	22
66	36
67	34
68	8
69	68
70	35
71	38
72	24
73	34
74	70
75	4
76	35
77	42
78	76
79	6
80	0

[0, 1, 0, 3, 0, 2, 4, 1, 0, 1, 8, 3, 2, 3, 10, 5, 0, 14, 6, 16, 6, 7, 8, 20, 10, 4, 12, 12, 12, 26, 6, 28, 12, 14, 16, 34, 18, 19, 10, 0, 18, 38, 40, 12, 20, 44, 22, 2, 24, 21, 26, 25, 50, 16, 26, 0, 56, 29, 58, 32, 6, 33, 1, 35, 22, 36, 34, 8, 68, 35, 38, 24, 34, 70, 4, 35, 42, 76, 6, 0]

cp's OEIS Frontend

A178313 Absolute difference between prime factors of n-th semiprime mod n.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	3
5	0
6	2
7	4
8	1
9	0
10	1
11	8
12	3
13	2
14	3
15	10
16	5
17	0
18	14
19	6
20	16
21	6
22	7
23	8
24	20
25	10
26	4
27	12
28	12
29	12
30	26
31	6
32	28
33	12
34	14
35	16
36	34
37	18
38	19
39	10
40	0
41	18
42	38
43	40
44	12
45	20
46	44
47	22
48	2
49	24
50	21
51	26
52	25
53	50
54	16
55	26
56	0
57	56
58	29
59	58
60	32
61	6
62	33
63	1
64	35
65	22
66	36
67	34
68	8
69	68
70	35
71	38
72	24
73	34
74	70
75	4
76	35
77	42
78	76
79	6
80	0

n	a(n)
1	0
2	1
3	0
4	3
5	0
6	2
7	4
8	1
9	0
10	1
11	8
12	3
13	2
14	3
15	10
16	5
17	0
18	14
19	6
20	16
21	6
22	7
23	8
24	20
25	10
26	4
27	12
28	12
29	12
30	26
31	6
32	28
33	12
34	14
35	16
36	34
37	18
38	19
39	10
40	0
41	18
42	38
43	40
44	12
45	20
46	44
47	22
48	2
49	24
50	21
51	26
52	25
53	50
54	16
55	26
56	0
57	56
58	29
59	58
60	32
61	6
62	33
63	1
64	35
65	22
66	36
67	34
68	8
69	68
70	35
71	38
72	24
73	34
74	70
75	4
76	35
77	42
78	76
79	6
80	0

n	a(n)
1	0
2	1
3	0
4	3
5	0
6	2
7	4
8	1
9	0
10	1
11	8
12	3
13	2
14	3
15	10
16	5
17	0
18	14
19	6
20	16
21	6
22	7
23	8
24	20
25	10
26	4
27	12
28	12
29	12
30	26
31	6
32	28
33	12
34	14
35	16
36	34
37	18
38	19
39	10
40	0
41	18
42	38
43	40
44	12
45	20
46	44
47	22
48	2
49	24
50	21
51	26
52	25
53	50
54	16
55	26
56	0
57	56
58	29
59	58
60	32
61	6
62	33
63	1
64	35
65	22
66	36
67	34
68	8
69	68
70	35
71	38
72	24
73	34
74	70
75	4
76	35
77	42
78	76
79	6
80	0