A139372 - cp's OEIS frontend

A139372 Let the binary expansion of n be n = Sum_{k} 2^{r_k}, let e(n) be the number of r_k's that are even, o(n) the number that are odd; sequence lists n such that e(n) >= o(n).

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

[0, 1, 3, 4, 5, 6, 7, 9, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 36, 37, 39, 45, 48, 49, 51, 52, 53, 54, 55, 57, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91]

cp's OEIS Frontend

A139372 Let the binary expansion of n be n = Sum_{k} 2^{r_k}, let e(n) be the number of r_k's that are even, o(n) the number that are odd; sequence lists n such that e(n) >= o(n).

Table of values

List of values

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

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

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