A051282 - cp's OEIS frontend

A051282 2-adic valuation of A025487: largest k such that 2^k divides A025487(n), where A025487 gives products of primorials.

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

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

cp's OEIS Frontend

A051282 2-adic valuation of A025487: largest k such that 2^k divides A025487(n), where A025487 gives products of primorials.

Table of values

List of values

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

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

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