A133457 - cp's OEIS frontend

A133457 Irregular triangle read by rows: row n gives exponents in expression for n as a sum of powers of 2.

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

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

cp's OEIS Frontend

A133457 Irregular triangle read by rows: row n gives exponents in expression for n as a sum of powers of 2.

Table of values

List of values

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

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

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