A371571 - cp's OEIS frontend

A371571 Irregular triangle read by rows: row n lists the 1-based positions (starting from the left) of zeros in the binary expansion of n, or 0 if the binary expansion of n contains only ones.

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

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

cp's OEIS Frontend

A371571 Irregular triangle read by rows: row n lists the 1-based positions (starting from the left) of zeros in the binary expansion of n, or 0 if the binary expansion of n contains only ones.

Table of values

List of values

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

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

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