A371572 - cp's OEIS frontend

A371572 Irregular triangle read by rows: row n lists the 1-based positions (starting from the left) of ones in the binary expansion of n, with row 0 = 0.

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

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

cp's OEIS Frontend

A371572 Irregular triangle read by rows: row n lists the 1-based positions (starting from the left) of ones in the binary expansion of n, with row 0 = 0.

Table of values

List of values

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

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

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