A368494 - cp's OEIS frontend

A368494 Irregular triangle read by rows: row n lists the 1-based positions (starting from the right) 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	1
3	0
4	1
5	2
6	2
7	1
8	0
9	1
10	2
11	3
12	2
13	3
14	1
15	3
16	3
17	1
18	2
19	2
20	1
21	0
22	1
23	2
24	3
25	4
26	2
27	3
28	4
29	1
30	3
31	4
32	3
33	4
34	1
35	2
36	4
37	2
38	4
39	1
40	4
41	4
42	1
43	2
44	3
45	2
46	3
47	1
48	3
49	3
50	1
51	2
52	2
53	1
54	0
55	1
56	2
57	3
58	4
59	5
60	2
61	3
62	4
63	5
64	1
65	3
66	4
67	5
68	3
69	4
70	5
71	1
72	2
73	4
74	5
75	2
76	4
77	5
78	1
79	4
80	5
81	4
82	5
83	1
84	2
85	3
86	5
87	2
88	3
89	5

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

cp's OEIS Frontend

A368494 Irregular triangle read by rows: row n lists the 1-based positions (starting from the right) 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	1
3	0
4	1
5	2
6	2
7	1
8	0
9	1
10	2
11	3
12	2
13	3
14	1
15	3
16	3
17	1
18	2
19	2
20	1
21	0
22	1
23	2
24	3
25	4
26	2
27	3
28	4
29	1
30	3
31	4
32	3
33	4
34	1
35	2
36	4
37	2
38	4
39	1
40	4
41	4
42	1
43	2
44	3
45	2
46	3
47	1
48	3
49	3
50	1
51	2
52	2
53	1
54	0
55	1
56	2
57	3
58	4
59	5
60	2
61	3
62	4
63	5
64	1
65	3
66	4
67	5
68	3
69	4
70	5
71	1
72	2
73	4
74	5
75	2
76	4
77	5
78	1
79	4
80	5
81	4
82	5
83	1
84	2
85	3
86	5
87	2
88	3
89	5

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

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