A101319 - cp's OEIS frontend

A101319 a(1) = 1; a(n) = (largest odd divisor of a(n-1))th smallest positive integer not yet in the sequence.

n	a(n)
1	1
2	2
3	3
4	6
5	7
6	12
7	8
8	4
9	5
10	14
11	17
12	28
13	18
14	21
15	35
16	50
17	40
18	15
19	30
20	31
21	51
22	72
23	23
24	43
25	66
26	56
27	20
28	16
29	9
30	27
31	54
32	55
33	87
34	120
35	38
36	45
37	79
38	115
39	153
40	192
41	13
42	37
43	73
44	112
45	26
46	41
47	81
48	126
49	105
50	152
51	52
52	42
53	59
54	104
55	44
56	36
57	33
58	78
59	88
60	46
61	67
62	124
63	80
64	24
65	19
66	64
67	10
68	32
69	11
70	58

[1, 2, 3, 6, 7, 12, 8, 4, 5, 14, 17, 28, 18, 21, 35, 50, 40, 15, 30, 31, 51, 72, 23, 43, 66, 56, 20, 16, 9, 27, 54, 55, 87, 120, 38, 45, 79, 115, 153, 192, 13, 37, 73, 112, 26, 41, 81, 126, 105, 152, 52, 42, 59, 104, 44, 36, 33, 78, 88, 46, 67, 124, 80, 24, 19, 64, 10, 32, 11, 58]

cp's OEIS Frontend

A101319 a(1) = 1; a(n) = (largest odd divisor of a(n-1))th smallest positive integer not yet in the sequence.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	6
5	7
6	12
7	8
8	4
9	5
10	14
11	17
12	28
13	18
14	21
15	35
16	50
17	40
18	15
19	30
20	31
21	51
22	72
23	23
24	43
25	66
26	56
27	20
28	16
29	9
30	27
31	54
32	55
33	87
34	120
35	38
36	45
37	79
38	115
39	153
40	192
41	13
42	37
43	73
44	112
45	26
46	41
47	81
48	126
49	105
50	152
51	52
52	42
53	59
54	104
55	44
56	36
57	33
58	78
59	88
60	46
61	67
62	124
63	80
64	24
65	19
66	64
67	10
68	32
69	11
70	58

n	a(n)
1	1
2	2
3	3
4	6
5	7
6	12
7	8
8	4
9	5
10	14
11	17
12	28
13	18
14	21
15	35
16	50
17	40
18	15
19	30
20	31
21	51
22	72
23	23
24	43
25	66
26	56
27	20
28	16
29	9
30	27
31	54
32	55
33	87
34	120
35	38
36	45
37	79
38	115
39	153
40	192
41	13
42	37
43	73
44	112
45	26
46	41
47	81
48	126
49	105
50	152
51	52
52	42
53	59
54	104
55	44
56	36
57	33
58	78
59	88
60	46
61	67
62	124
63	80
64	24
65	19
66	64
67	10
68	32
69	11
70	58

n	a(n)
1	1
2	2
3	3
4	6
5	7
6	12
7	8
8	4
9	5
10	14
11	17
12	28
13	18
14	21
15	35
16	50
17	40
18	15
19	30
20	31
21	51
22	72
23	23
24	43
25	66
26	56
27	20
28	16
29	9
30	27
31	54
32	55
33	87
34	120
35	38
36	45
37	79
38	115
39	153
40	192
41	13
42	37
43	73
44	112
45	26
46	41
47	81
48	126
49	105
50	152
51	52
52	42
53	59
54	104
55	44
56	36
57	33
58	78
59	88
60	46
61	67
62	124
63	80
64	24
65	19
66	64
67	10
68	32
69	11
70	58