A306231 - cp's OEIS frontend

A306231 Lexicographically earliest sequence of distinct positive terms such that for any n > 0 and any k > 0, floor((2^k) / a(n)) AND floor((2^k) / a(n+1)) = 0 (where AND denotes the bitwise AND operator).

n	a(n)
1	1
2	2
3	3
4	6
5	4
6	5
7	20
8	8
9	9
10	72
11	16
12	7
13	14
14	21
15	78
16	32
17	11
18	352
19	64
20	10
21	40
22	15
23	24
24	12
25	30
26	35
27	390
28	48
29	96
30	51
31	102
32	60
33	13
34	832
35	117
36	144
37	18
38	168
39	42
40	28
41	39
42	180
43	56
44	84
45	63
46	70
47	780
48	120
49	26
50	128
51	19
52	504
53	36
54	288
55	126
56	45
57	112
58	151
59	896
60	156
61	720
62	224

[1, 2, 3, 6, 4, 5, 20, 8, 9, 72, 16, 7, 14, 21, 78, 32, 11, 352, 64, 10, 40, 15, 24, 12, 30, 35, 390, 48, 96, 51, 102, 60, 13, 832, 117, 144, 18, 168, 42, 28, 39, 180, 56, 84, 63, 70, 780, 120, 26, 128, 19, 504, 36, 288, 126, 45, 112, 151, 896, 156, 720, 224]

cp's OEIS Frontend

A306231 Lexicographically earliest sequence of distinct positive terms such that for any n > 0 and any k > 0, floor((2^k) / a(n)) AND floor((2^k) / a(n+1)) = 0 (where AND denotes the bitwise AND operator).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	6
5	4
6	5
7	20
8	8
9	9
10	72
11	16
12	7
13	14
14	21
15	78
16	32
17	11
18	352
19	64
20	10
21	40
22	15
23	24
24	12
25	30
26	35
27	390
28	48
29	96
30	51
31	102
32	60
33	13
34	832
35	117
36	144
37	18
38	168
39	42
40	28
41	39
42	180
43	56
44	84
45	63
46	70
47	780
48	120
49	26
50	128
51	19
52	504
53	36
54	288
55	126
56	45
57	112
58	151
59	896
60	156
61	720
62	224

n	a(n)
1	1
2	2
3	3
4	6
5	4
6	5
7	20
8	8
9	9
10	72
11	16
12	7
13	14
14	21
15	78
16	32
17	11
18	352
19	64
20	10
21	40
22	15
23	24
24	12
25	30
26	35
27	390
28	48
29	96
30	51
31	102
32	60
33	13
34	832
35	117
36	144
37	18
38	168
39	42
40	28
41	39
42	180
43	56
44	84
45	63
46	70
47	780
48	120
49	26
50	128
51	19
52	504
53	36
54	288
55	126
56	45
57	112
58	151
59	896
60	156
61	720
62	224

n	a(n)
1	1
2	2
3	3
4	6
5	4
6	5
7	20
8	8
9	9
10	72
11	16
12	7
13	14
14	21
15	78
16	32
17	11
18	352
19	64
20	10
21	40
22	15
23	24
24	12
25	30
26	35
27	390
28	48
29	96
30	51
31	102
32	60
33	13
34	832
35	117
36	144
37	18
38	168
39	42
40	28
41	39
42	180
43	56
44	84
45	63
46	70
47	780
48	120
49	26
50	128
51	19
52	504
53	36
54	288
55	126
56	45
57	112
58	151
59	896
60	156
61	720
62	224