A363227 - cp's OEIS frontend

A363227 Positive integers m such that every k with 1 <= k <= m is a linear combination of distinct divisors of m with coefficients +1 or -1.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	9
8	10
9	12
10	14
11	15
12	16
13	18
14	20
15	21
16	24
17	27
18	28
19	30
20	32
21	36
22	40
23	42
24	44
25	45
26	48
27	50
28	52
29	54
30	56
31	60
32	63
33	64
34	66
35	70
36	72
37	75
38	78
39	80
40	81
41	84
42	88
43	90
44	96
45	98
46	99
47	100
48	102
49	104
50	105
51	108
52	110
53	112
54	114
55	117
56	120
57	126
58	128
59	130
60	132
61	135
62	136
63	138
64	140
65	144
66	147
67	150

[1, 2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 36, 40, 42, 44, 45, 48, 50, 52, 54, 56, 60, 63, 64, 66, 70, 72, 75, 78, 80, 81, 84, 88, 90, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 117, 120, 126, 128, 130, 132, 135, 136, 138, 140, 144, 147, 150]

cp's OEIS Frontend

A363227 Positive integers m such that every k with 1 <= k <= m is a linear combination of distinct divisors of m with coefficients +1 or -1.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	9
8	10
9	12
10	14
11	15
12	16
13	18
14	20
15	21
16	24
17	27
18	28
19	30
20	32
21	36
22	40
23	42
24	44
25	45
26	48
27	50
28	52
29	54
30	56
31	60
32	63
33	64
34	66
35	70
36	72
37	75
38	78
39	80
40	81
41	84
42	88
43	90
44	96
45	98
46	99
47	100
48	102
49	104
50	105
51	108
52	110
53	112
54	114
55	117
56	120
57	126
58	128
59	130
60	132
61	135
62	136
63	138
64	140
65	144
66	147
67	150

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	9
8	10
9	12
10	14
11	15
12	16
13	18
14	20
15	21
16	24
17	27
18	28
19	30
20	32
21	36
22	40
23	42
24	44
25	45
26	48
27	50
28	52
29	54
30	56
31	60
32	63
33	64
34	66
35	70
36	72
37	75
38	78
39	80
40	81
41	84
42	88
43	90
44	96
45	98
46	99
47	100
48	102
49	104
50	105
51	108
52	110
53	112
54	114
55	117
56	120
57	126
58	128
59	130
60	132
61	135
62	136
63	138
64	140
65	144
66	147
67	150

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	9
8	10
9	12
10	14
11	15
12	16
13	18
14	20
15	21
16	24
17	27
18	28
19	30
20	32
21	36
22	40
23	42
24	44
25	45
26	48
27	50
28	52
29	54
30	56
31	60
32	63
33	64
34	66
35	70
36	72
37	75
38	78
39	80
40	81
41	84
42	88
43	90
44	96
45	98
46	99
47	100
48	102
49	104
50	105
51	108
52	110
53	112
54	114
55	117
56	120
57	126
58	128
59	130
60	132
61	135
62	136
63	138
64	140
65	144
66	147
67	150