A318887 - cp's OEIS frontend

A318887 Filter sequence related to the differences of prime factors of n.

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	5
9	3
10	6
11	2
12	7
13	2
14	8
15	9
16	10
17	2
18	11
19	2
20	12
21	13
22	14
23	2
24	15
25	3
26	16
27	5
28	17
29	2
30	18
31	2
32	19
33	20
34	21
35	9
36	22
37	2
38	23
39	24
40	25
41	2
42	26
43	2
44	27
45	28
46	29
47	2
48	30
49	3
50	31
51	32
52	33
53	2
54	34
55	35
56	36
57	37
58	38
59	2
60	39
61	2
62	40
63	41
64	42
65	20
66	43
67	2
68	44
69	45
70	46
71	2
72	47
73	2
74	48
75	49
76	50
77	13
78	51
79	2
80	52
81	10
82	53
83	2
84	54
85	55
86	56
87	57
88	58
89	2
90	59
91	35
92	60
93	61
94	62
95	32
96	63
97	2
98	64
99	65
100	66
101	2

[1, 2, 2, 3, 2, 4, 2, 5, 3, 6, 2, 7, 2, 8, 9, 10, 2, 11, 2, 12, 13, 14, 2, 15, 3, 16, 5, 17, 2, 18, 2, 19, 20, 21, 9, 22, 2, 23, 24, 25, 2, 26, 2, 27, 28, 29, 2, 30, 3, 31, 32, 33, 2, 34, 35, 36, 37, 38, 2, 39, 2, 40, 41, 42, 20, 43, 2, 44, 45, 46, 2, 47, 2, 48, 49, 50, 13, 51, 2, 52, 10, 53, 2, 54, 55, 56, 57, 58, 2, 59, 35, 60, 61, 62, 32, 63, 2, 64, 65, 66, 2]

cp's OEIS Frontend

A318887 Filter sequence related to the differences of prime factors of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	5
9	3
10	6
11	2
12	7
13	2
14	8
15	9
16	10
17	2
18	11
19	2
20	12
21	13
22	14
23	2
24	15
25	3
26	16
27	5
28	17
29	2
30	18
31	2
32	19
33	20
34	21
35	9
36	22
37	2
38	23
39	24
40	25
41	2
42	26
43	2
44	27
45	28
46	29
47	2
48	30
49	3
50	31
51	32
52	33
53	2
54	34
55	35
56	36
57	37
58	38
59	2
60	39
61	2
62	40
63	41
64	42
65	20
66	43
67	2
68	44
69	45
70	46
71	2
72	47
73	2
74	48
75	49
76	50
77	13
78	51
79	2
80	52
81	10
82	53
83	2
84	54
85	55
86	56
87	57
88	58
89	2
90	59
91	35
92	60
93	61
94	62
95	32
96	63
97	2
98	64
99	65
100	66
101	2

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	5
9	3
10	6
11	2
12	7
13	2
14	8
15	9
16	10
17	2
18	11
19	2
20	12
21	13
22	14
23	2
24	15
25	3
26	16
27	5
28	17
29	2
30	18
31	2
32	19
33	20
34	21
35	9
36	22
37	2
38	23
39	24
40	25
41	2
42	26
43	2
44	27
45	28
46	29
47	2
48	30
49	3
50	31
51	32
52	33
53	2
54	34
55	35
56	36
57	37
58	38
59	2
60	39
61	2
62	40
63	41
64	42
65	20
66	43
67	2
68	44
69	45
70	46
71	2
72	47
73	2
74	48
75	49
76	50
77	13
78	51
79	2
80	52
81	10
82	53
83	2
84	54
85	55
86	56
87	57
88	58
89	2
90	59
91	35
92	60
93	61
94	62
95	32
96	63
97	2
98	64
99	65
100	66
101	2

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	5
9	3
10	6
11	2
12	7
13	2
14	8
15	9
16	10
17	2
18	11
19	2
20	12
21	13
22	14
23	2
24	15
25	3
26	16
27	5
28	17
29	2
30	18
31	2
32	19
33	20
34	21
35	9
36	22
37	2
38	23
39	24
40	25
41	2
42	26
43	2
44	27
45	28
46	29
47	2
48	30
49	3
50	31
51	32
52	33
53	2
54	34
55	35
56	36
57	37
58	38
59	2
60	39
61	2
62	40
63	41
64	42
65	20
66	43
67	2
68	44
69	45
70	46
71	2
72	47
73	2
74	48
75	49
76	50
77	13
78	51
79	2
80	52
81	10
82	53
83	2
84	54
85	55
86	56
87	57
88	58
89	2
90	59
91	35
92	60
93	61
94	62
95	32
96	63
97	2
98	64
99	65
100	66
101	2