A072758 - cp's OEIS frontend

A072758 a(0)=0, a(1)=1 and for k>1, a(2k)=least positive integer not a(j) for j<2k; and a(2k+1)=a(2k)+Floor(a(2k)/2).

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

[0, 1, 2, 3, 4, 6, 5, 7, 8, 12, 9, 13, 10, 15, 11, 16, 14, 21, 17, 25, 18, 27, 19, 28, 20, 30, 22, 33, 23, 34, 24, 36, 26, 39, 29, 43, 31, 46, 32, 48, 35, 52, 37, 55, 38, 57, 40, 60, 41, 61, 42, 63, 44, 66, 45, 67, 47, 70, 49, 73, 50, 75, 51, 76, 53, 79, 54, 81, 56, 84, 58, 87]

cp's OEIS Frontend

A072758 a(0)=0, a(1)=1 and for k>1, a(2k)=least positive integer not a(j) for j<2k; and a(2k+1)=a(2k)+Floor(a(2k)/2).

Table of values

List of values

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

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

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