A278478 - cp's OEIS frontend

A278478 a(n) is the 2-adic valuation of A000041(n).

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	1
11	3
12	0
13	0
14	0
15	4
16	0
17	0
18	0
19	1
20	0
21	3
22	1
23	0
24	0
25	1
26	2
27	1
28	1
29	0
30	2
31	1
32	0
33	0
34	1
35	0
36	0
37	0
38	0
39	0
40	1
41	0
42	1
43	0
44	0
45	1
46	1
47	1
48	0
49	0
50	1
51	0
52	0
53	0
54	0
55	2
56	0
57	1
58	2
59	2
60	0
61	0
62	2
63	0
64	1
65	1
66	6
67	0
68	0
69	0
70	5
71	0
72	0
73	0
74	2
75	3
76	0
77	0
78	2
79	1
80	2
81	0
82	0
83	0
84	2
85	0
86	1
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	3
95	0
96	11
97	1
98	3
99	0
100	2
101	1
102	0
103	1
104	0
105	0
106	4
107	0
108	2
109	7
110	1
111	0
112	2
113	2
114	0
115	0
116	3
117	2
118	0

[0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 3, 0, 0, 0, 4, 0, 0, 0, 1, 0, 3, 1, 0, 0, 1, 2, 1, 1, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 2, 0, 1, 2, 2, 0, 0, 2, 0, 1, 1, 6, 0, 0, 0, 5, 0, 0, 0, 2, 3, 0, 0, 2, 1, 2, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 3, 0, 11, 1, 3, 0, 2, 1, 0, 1, 0, 0, 4, 0, 2, 7, 1, 0, 2, 2, 0, 0, 3, 2, 0]

cp's OEIS Frontend

A278478 a(n) is the 2-adic valuation of A000041(n).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	1
11	3
12	0
13	0
14	0
15	4
16	0
17	0
18	0
19	1
20	0
21	3
22	1
23	0
24	0
25	1
26	2
27	1
28	1
29	0
30	2
31	1
32	0
33	0
34	1
35	0
36	0
37	0
38	0
39	0
40	1
41	0
42	1
43	0
44	0
45	1
46	1
47	1
48	0
49	0
50	1
51	0
52	0
53	0
54	0
55	2
56	0
57	1
58	2
59	2
60	0
61	0
62	2
63	0
64	1
65	1
66	6
67	0
68	0
69	0
70	5
71	0
72	0
73	0
74	2
75	3
76	0
77	0
78	2
79	1
80	2
81	0
82	0
83	0
84	2
85	0
86	1
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	3
95	0
96	11
97	1
98	3
99	0
100	2
101	1
102	0
103	1
104	0
105	0
106	4
107	0
108	2
109	7
110	1
111	0
112	2
113	2
114	0
115	0
116	3
117	2
118	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	1
11	3
12	0
13	0
14	0
15	4
16	0
17	0
18	0
19	1
20	0
21	3
22	1
23	0
24	0
25	1
26	2
27	1
28	1
29	0
30	2
31	1
32	0
33	0
34	1
35	0
36	0
37	0
38	0
39	0
40	1
41	0
42	1
43	0
44	0
45	1
46	1
47	1
48	0
49	0
50	1
51	0
52	0
53	0
54	0
55	2
56	0
57	1
58	2
59	2
60	0
61	0
62	2
63	0
64	1
65	1
66	6
67	0
68	0
69	0
70	5
71	0
72	0
73	0
74	2
75	3
76	0
77	0
78	2
79	1
80	2
81	0
82	0
83	0
84	2
85	0
86	1
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	3
95	0
96	11
97	1
98	3
99	0
100	2
101	1
102	0
103	1
104	0
105	0
106	4
107	0
108	2
109	7
110	1
111	0
112	2
113	2
114	0
115	0
116	3
117	2
118	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	1
11	3
12	0
13	0
14	0
15	4
16	0
17	0
18	0
19	1
20	0
21	3
22	1
23	0
24	0
25	1
26	2
27	1
28	1
29	0
30	2
31	1
32	0
33	0
34	1
35	0
36	0
37	0
38	0
39	0
40	1
41	0
42	1
43	0
44	0
45	1
46	1
47	1
48	0
49	0
50	1
51	0
52	0
53	0
54	0
55	2
56	0
57	1
58	2
59	2
60	0
61	0
62	2
63	0
64	1
65	1
66	6
67	0
68	0
69	0
70	5
71	0
72	0
73	0
74	2
75	3
76	0
77	0
78	2
79	1
80	2
81	0
82	0
83	0
84	2
85	0
86	1
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	3
95	0
96	11
97	1
98	3
99	0
100	2
101	1
102	0
103	1
104	0
105	0
106	4
107	0
108	2
109	7
110	1
111	0
112	2
113	2
114	0
115	0
116	3
117	2
118	0