A160382 - cp's OEIS frontend

A160382 Number of 2's in base-4 representation of n.

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

[0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 3, 2, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 1, 1, 2, 1, 1, 1, 2, 1, 2]

cp's OEIS Frontend

A160382 Number of 2's in base-4 representation of n.

Table of values

List of values

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

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

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