A095767 - cp's OEIS frontend

A095767 a(n) = valuation(A004001(n),2).

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

[0, 0, 1, 1, 0, 2, 2, 2, 0, 1, 0, 0, 3, 3, 3, 3, 0, 1, 0, 2, 2, 0, 1, 1, 0, 0, 0, 4, 4, 4, 4, 4, 0, 1, 0, 2, 0, 0, 1, 0, 3, 3, 0, 1, 1, 0, 0, 0, 2, 0, 0, 1, 1, 1, 0, 0, 0, 0, 5, 5, 5, 5, 5, 5, 0, 1, 0, 2, 0, 1, 1, 0, 3, 0, 1, 1, 0, 2, 0, 0, 1, 0, 0, 4, 4, 4, 0, 1, 0, 0, 2, 0, 0, 1, 1, 1, 0, 3, 3, 0, 0, 0, 1, 1, 1]

cp's OEIS Frontend

A095767 a(n) = valuation(A004001(n),2).

Table of values

List of values

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

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

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