A290089 - cp's OEIS frontend

A290089 Filter-sequence for the prime signature of cototient: a(1) = 0; for n > 1, a(n) = A101296(A051953(n)).

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	4
11	1
12	5
13	1
14	5
15	2
16	5
17	1
18	6
19	1
20	6
21	3
22	6
23	1
24	7
25	2
26	4
27	3
28	7
29	1
30	4
31	1
32	7
33	2
34	6
35	2
36	8
37	1
38	6
39	4
40	8
41	1
42	9
43	1
44	8
45	4
46	8
47	1
48	10
49	2
50	9
51	2
52	6
53	1
54	11
55	4
56	10
57	4
58	9
59	1
60	6
61	1
62	10
63	5
64	10
65	2
66	4
67	1
68	11
69	3
70	4
71	1
72	12
73	1
74	4
75	4
76	8
77	2
78	8
79	1
80	12
81	5
82	9
83	1
84	13
85	4
86	6
87	2
88	12
89	1
90	9
91	2
92	12
93	4
94	12
95	2
96	14
97	1
98	8
99	4
100	13
101	1
102	9
103	1
104	8
105	4

[0, 1, 1, 2, 1, 3, 1, 3, 2, 4, 1, 5, 1, 5, 2, 5, 1, 6, 1, 6, 3, 6, 1, 7, 2, 4, 3, 7, 1, 4, 1, 7, 2, 6, 2, 8, 1, 6, 4, 8, 1, 9, 1, 8, 4, 8, 1, 10, 2, 9, 2, 6, 1, 11, 4, 10, 4, 9, 1, 6, 1, 10, 5, 10, 2, 4, 1, 11, 3, 4, 1, 12, 1, 4, 4, 8, 2, 8, 1, 12, 5, 9, 1, 13, 4, 6, 2, 12, 1, 9, 2, 12, 4, 12, 2, 14, 1, 8, 4, 13, 1, 9, 1, 8, 4]

cp's OEIS Frontend

A290089 Filter-sequence for the prime signature of cototient: a(1) = 0; for n > 1, a(n) = A101296(A051953(n)).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	4
11	1
12	5
13	1
14	5
15	2
16	5
17	1
18	6
19	1
20	6
21	3
22	6
23	1
24	7
25	2
26	4
27	3
28	7
29	1
30	4
31	1
32	7
33	2
34	6
35	2
36	8
37	1
38	6
39	4
40	8
41	1
42	9
43	1
44	8
45	4
46	8
47	1
48	10
49	2
50	9
51	2
52	6
53	1
54	11
55	4
56	10
57	4
58	9
59	1
60	6
61	1
62	10
63	5
64	10
65	2
66	4
67	1
68	11
69	3
70	4
71	1
72	12
73	1
74	4
75	4
76	8
77	2
78	8
79	1
80	12
81	5
82	9
83	1
84	13
85	4
86	6
87	2
88	12
89	1
90	9
91	2
92	12
93	4
94	12
95	2
96	14
97	1
98	8
99	4
100	13
101	1
102	9
103	1
104	8
105	4

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	4
11	1
12	5
13	1
14	5
15	2
16	5
17	1
18	6
19	1
20	6
21	3
22	6
23	1
24	7
25	2
26	4
27	3
28	7
29	1
30	4
31	1
32	7
33	2
34	6
35	2
36	8
37	1
38	6
39	4
40	8
41	1
42	9
43	1
44	8
45	4
46	8
47	1
48	10
49	2
50	9
51	2
52	6
53	1
54	11
55	4
56	10
57	4
58	9
59	1
60	6
61	1
62	10
63	5
64	10
65	2
66	4
67	1
68	11
69	3
70	4
71	1
72	12
73	1
74	4
75	4
76	8
77	2
78	8
79	1
80	12
81	5
82	9
83	1
84	13
85	4
86	6
87	2
88	12
89	1
90	9
91	2
92	12
93	4
94	12
95	2
96	14
97	1
98	8
99	4
100	13
101	1
102	9
103	1
104	8
105	4

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	4
11	1
12	5
13	1
14	5
15	2
16	5
17	1
18	6
19	1
20	6
21	3
22	6
23	1
24	7
25	2
26	4
27	3
28	7
29	1
30	4
31	1
32	7
33	2
34	6
35	2
36	8
37	1
38	6
39	4
40	8
41	1
42	9
43	1
44	8
45	4
46	8
47	1
48	10
49	2
50	9
51	2
52	6
53	1
54	11
55	4
56	10
57	4
58	9
59	1
60	6
61	1
62	10
63	5
64	10
65	2
66	4
67	1
68	11
69	3
70	4
71	1
72	12
73	1
74	4
75	4
76	8
77	2
78	8
79	1
80	12
81	5
82	9
83	1
84	13
85	4
86	6
87	2
88	12
89	1
90	9
91	2
92	12
93	4
94	12
95	2
96	14
97	1
98	8
99	4
100	13
101	1
102	9
103	1
104	8
105	4