A289814 - cp's OEIS frontend

A289814 A binary encoding of the twos in ternary representation of n (see Comments for precise definition).

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

[0, 0, 1, 0, 0, 1, 2, 2, 3, 0, 0, 1, 0, 0, 1, 2, 2, 3, 4, 4, 5, 4, 4, 5, 6, 6, 7, 0, 0, 1, 0, 0, 1, 2, 2, 3, 0, 0, 1, 0, 0, 1, 2, 2, 3, 4, 4, 5, 4, 4, 5, 6, 6, 7, 8, 8, 9, 8, 8, 9, 10, 10, 11, 8, 8, 9, 8, 8, 9, 10, 10, 11, 12, 12, 13, 12, 12, 13, 14, 14, 15, 0]

cp's OEIS Frontend

A289814 A binary encoding of the twos in ternary representation of n (see Comments for precise definition).

Table of values

List of values

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

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

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