A338199 - cp's OEIS frontend

A338199 a(n) = v(1 + F(4n - 3)), where F(x) = (3x + 1)/2^v(3*x + 1), x is any odd natural number, and v(y) is the 2-adic valuation of y.

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	1
7	2
8	2
9	1
10	3
11	5
12	1
13	1
14	1
15	2
16	3
17	1
18	1
19	3
20	1
21	1
22	1
23	2
24	2
25	1
26	2
27	4
28	1
29	1
30	2
31	2
32	4
33	1
34	1
35	3
36	1
37	1
38	3
39	2
40	2
41	1
42	5
43	7
44	1
45	1
46	1
47	2
48	3
49	1
50	1
51	3
52	1
53	1
54	1
55	2
56	2
57	1
58	2
59	4
60	1
61	1
62	3
63	2
64	5
65	1
66	1
67	3
68	1
69	1
70	1
71	2
72	2
73	1

[1, 1, 3, 1, 1, 1, 2, 2, 1, 3, 5, 1, 1, 1, 2, 3, 1, 1, 3, 1, 1, 1, 2, 2, 1, 2, 4, 1, 1, 2, 2, 4, 1, 1, 3, 1, 1, 3, 2, 2, 1, 5, 7, 1, 1, 1, 2, 3, 1, 1, 3, 1, 1, 1, 2, 2, 1, 2, 4, 1, 1, 3, 2, 5, 1, 1, 3, 1, 1, 1, 2, 2, 1]

cp's OEIS Frontend

A338199 a(n) = v(1 + F(4n - 3)), where F(x) = (3x + 1)/2^v(3*x + 1), x is any odd natural number, and v(y) is the 2-adic valuation of y.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	1
7	2
8	2
9	1
10	3
11	5
12	1
13	1
14	1
15	2
16	3
17	1
18	1
19	3
20	1
21	1
22	1
23	2
24	2
25	1
26	2
27	4
28	1
29	1
30	2
31	2
32	4
33	1
34	1
35	3
36	1
37	1
38	3
39	2
40	2
41	1
42	5
43	7
44	1
45	1
46	1
47	2
48	3
49	1
50	1
51	3
52	1
53	1
54	1
55	2
56	2
57	1
58	2
59	4
60	1
61	1
62	3
63	2
64	5
65	1
66	1
67	3
68	1
69	1
70	1
71	2
72	2
73	1

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	1
7	2
8	2
9	1
10	3
11	5
12	1
13	1
14	1
15	2
16	3
17	1
18	1
19	3
20	1
21	1
22	1
23	2
24	2
25	1
26	2
27	4
28	1
29	1
30	2
31	2
32	4
33	1
34	1
35	3
36	1
37	1
38	3
39	2
40	2
41	1
42	5
43	7
44	1
45	1
46	1
47	2
48	3
49	1
50	1
51	3
52	1
53	1
54	1
55	2
56	2
57	1
58	2
59	4
60	1
61	1
62	3
63	2
64	5
65	1
66	1
67	3
68	1
69	1
70	1
71	2
72	2
73	1

cp's OEIS Frontend

A338199 a(n) = v(1 + F(4*n - 3)), where F(x) = (3*x + 1)/2^v(3*x + 1), x is any odd natural number, and v(y) is the 2-adic valuation of y.

Table of values

List of values

A338199 a(n) = v(1 + F(4n - 3)), where F(x) = (3x + 1)/2^v(3*x + 1), x is any odd natural number, and v(y) is the 2-adic valuation of y.

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	1
7	2
8	2
9	1
10	3
11	5
12	1
13	1
14	1
15	2
16	3
17	1
18	1
19	3
20	1
21	1
22	1
23	2
24	2
25	1
26	2
27	4
28	1
29	1
30	2
31	2
32	4
33	1
34	1
35	3
36	1
37	1
38	3
39	2
40	2
41	1
42	5
43	7
44	1
45	1
46	1
47	2
48	3
49	1
50	1
51	3
52	1
53	1
54	1
55	2
56	2
57	1
58	2
59	4
60	1
61	1
62	3
63	2
64	5
65	1
66	1
67	3
68	1
69	1
70	1
71	2
72	2
73	1