A161790 - cp's OEIS frontend

A161790 The positive integer n is included if 1 is the largest integer of the form {2^k - 1} to divide n.

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	11
8	13
9	16
10	17
11	19
12	20
13	22
14	23
15	25
16	26
17	29
18	32
19	34
20	37
21	38
22	40
23	41
24	43
25	44
26	46
27	47
28	50
29	52
30	53
31	55
32	58
33	59
34	61
35	64
36	65
37	67
38	68
39	71
40	73
41	74
42	76
43	79
44	80
45	82
46	83
47	85
48	86
49	88
50	89
51	92
52	94
53	95
54	97
55	100
56	101
57	103
58	104
59	106
60	107
61	109
62	110
63	113
64	115
65	116
66	118
67	121
68	122
69	125
70	128
71	130
72	131
73	134
74	136
75	137
76	139
77	142
78	143

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 19, 20, 22, 23, 25, 26, 29, 32, 34, 37, 38, 40, 41, 43, 44, 46, 47, 50, 52, 53, 55, 58, 59, 61, 64, 65, 67, 68, 71, 73, 74, 76, 79, 80, 82, 83, 85, 86, 88, 89, 92, 94, 95, 97, 100, 101, 103, 104, 106, 107, 109, 110, 113, 115, 116, 118, 121, 122, 125, 128, 130, 131, 134, 136, 137, 139, 142, 143]

cp's OEIS Frontend

A161790 The positive integer n is included if 1 is the largest integer of the form {2^k - 1} to divide n.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	11
8	13
9	16
10	17
11	19
12	20
13	22
14	23
15	25
16	26
17	29
18	32
19	34
20	37
21	38
22	40
23	41
24	43
25	44
26	46
27	47
28	50
29	52
30	53
31	55
32	58
33	59
34	61
35	64
36	65
37	67
38	68
39	71
40	73
41	74
42	76
43	79
44	80
45	82
46	83
47	85
48	86
49	88
50	89
51	92
52	94
53	95
54	97
55	100
56	101
57	103
58	104
59	106
60	107
61	109
62	110
63	113
64	115
65	116
66	118
67	121
68	122
69	125
70	128
71	130
72	131
73	134
74	136
75	137
76	139
77	142
78	143

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	11
8	13
9	16
10	17
11	19
12	20
13	22
14	23
15	25
16	26
17	29
18	32
19	34
20	37
21	38
22	40
23	41
24	43
25	44
26	46
27	47
28	50
29	52
30	53
31	55
32	58
33	59
34	61
35	64
36	65
37	67
38	68
39	71
40	73
41	74
42	76
43	79
44	80
45	82
46	83
47	85
48	86
49	88
50	89
51	92
52	94
53	95
54	97
55	100
56	101
57	103
58	104
59	106
60	107
61	109
62	110
63	113
64	115
65	116
66	118
67	121
68	122
69	125
70	128
71	130
72	131
73	134
74	136
75	137
76	139
77	142
78	143

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	11
8	13
9	16
10	17
11	19
12	20
13	22
14	23
15	25
16	26
17	29
18	32
19	34
20	37
21	38
22	40
23	41
24	43
25	44
26	46
27	47
28	50
29	52
30	53
31	55
32	58
33	59
34	61
35	64
36	65
37	67
38	68
39	71
40	73
41	74
42	76
43	79
44	80
45	82
46	83
47	85
48	86
49	88
50	89
51	92
52	94
53	95
54	97
55	100
56	101
57	103
58	104
59	106
60	107
61	109
62	110
63	113
64	115
65	116
66	118
67	121
68	122
69	125
70	128
71	130
72	131
73	134
74	136
75	137
76	139
77	142
78	143