A376615 - cp's OEIS frontend

A376615 a(n) is the number of iterations that n requires to reach a noninteger under the map x -> x / wt(x), where wt(k) is the binary weight of k (A000120); a(n) = 0 if n is a power of 2.

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

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

cp's OEIS Frontend

A376615 a(n) is the number of iterations that n requires to reach a noninteger under the map x -> x / wt(x), where wt(k) is the binary weight of k (A000120); a(n) = 0 if n is a power of 2.

Table of values

List of values

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

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

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