A118319 - cp's OEIS frontend

A118319 a(n) = (highest power of 2 dividing n)th integer among those positive integers not occurring in {a(1),a(2),a(3),...,a(n-1)}.

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	6
7	5
8	15
9	8
10	10
11	9
12	14
13	11
14	13
15	12
16	31
17	16
18	18
19	17
20	22
21	19
22	21
23	20
24	30
25	23
26	25
27	24
28	29
29	26
30	28
31	27
32	63
33	32
34	34
35	33
36	38
37	35
38	37
39	36
40	46
41	39
42	41
43	40
44	45
45	42
46	44
47	43
48	62
49	47
50	49
51	48
52	53
53	50
54	52
55	51
56	61
57	54
58	56
59	55
60	60
61	57
62	59
63	58
64	127
65	64
66	66
67	65
68	70
69	67
70	69
71	68
72	78

[1, 3, 2, 7, 4, 6, 5, 15, 8, 10, 9, 14, 11, 13, 12, 31, 16, 18, 17, 22, 19, 21, 20, 30, 23, 25, 24, 29, 26, 28, 27, 63, 32, 34, 33, 38, 35, 37, 36, 46, 39, 41, 40, 45, 42, 44, 43, 62, 47, 49, 48, 53, 50, 52, 51, 61, 54, 56, 55, 60, 57, 59, 58, 127, 64, 66, 65, 70, 67, 69, 68, 78]

cp's OEIS Frontend

A118319 a(n) = (highest power of 2 dividing n)th integer among those positive integers not occurring in {a(1),a(2),a(3),...,a(n-1)}.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	6
7	5
8	15
9	8
10	10
11	9
12	14
13	11
14	13
15	12
16	31
17	16
18	18
19	17
20	22
21	19
22	21
23	20
24	30
25	23
26	25
27	24
28	29
29	26
30	28
31	27
32	63
33	32
34	34
35	33
36	38
37	35
38	37
39	36
40	46
41	39
42	41
43	40
44	45
45	42
46	44
47	43
48	62
49	47
50	49
51	48
52	53
53	50
54	52
55	51
56	61
57	54
58	56
59	55
60	60
61	57
62	59
63	58
64	127
65	64
66	66
67	65
68	70
69	67
70	69
71	68
72	78

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	6
7	5
8	15
9	8
10	10
11	9
12	14
13	11
14	13
15	12
16	31
17	16
18	18
19	17
20	22
21	19
22	21
23	20
24	30
25	23
26	25
27	24
28	29
29	26
30	28
31	27
32	63
33	32
34	34
35	33
36	38
37	35
38	37
39	36
40	46
41	39
42	41
43	40
44	45
45	42
46	44
47	43
48	62
49	47
50	49
51	48
52	53
53	50
54	52
55	51
56	61
57	54
58	56
59	55
60	60
61	57
62	59
63	58
64	127
65	64
66	66
67	65
68	70
69	67
70	69
71	68
72	78

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	6
7	5
8	15
9	8
10	10
11	9
12	14
13	11
14	13
15	12
16	31
17	16
18	18
19	17
20	22
21	19
22	21
23	20
24	30
25	23
26	25
27	24
28	29
29	26
30	28
31	27
32	63
33	32
34	34
35	33
36	38
37	35
38	37
39	36
40	46
41	39
42	41
43	40
44	45
45	42
46	44
47	43
48	62
49	47
50	49
51	48
52	53
53	50
54	52
55	51
56	61
57	54
58	56
59	55
60	60
61	57
62	59
63	58
64	127
65	64
66	66
67	65
68	70
69	67
70	69
71	68
72	78