A384538 - cp's OEIS frontend

A384538 Positive integers k >= 10 for which for every pair of nonempty substrings that concatenate to give k one substring divides the other.

n	a(n)
1	10
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	20
12	21
13	22
14	24
15	26
16	28
17	30
18	31
19	33
20	36
21	39
22	40
23	41
24	42
25	44
26	48
27	50
28	51
29	55
30	60
31	61
32	62
33	63
34	66
35	70
36	71
37	77
38	80
39	81
40	82
41	84
42	88
43	90
44	91
45	93
46	99
47	100
48	101
49	102
50	105
51	110
52	111
53	120
54	121
55	122
56	123
57	124
58	126
59	130
60	131
61	140
62	141

[10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 26, 28, 30, 31, 33, 36, 39, 40, 41, 42, 44, 48, 50, 51, 55, 60, 61, 62, 63, 66, 70, 71, 77, 80, 81, 82, 84, 88, 90, 91, 93, 99, 100, 101, 102, 105, 110, 111, 120, 121, 122, 123, 124, 126, 130, 131, 140, 141]

cp's OEIS Frontend

A384538 Positive integers k >= 10 for which for every pair of nonempty substrings that concatenate to give k one substring divides the other.

Table of values

List of values

n	a(n)
1	10
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	20
12	21
13	22
14	24
15	26
16	28
17	30
18	31
19	33
20	36
21	39
22	40
23	41
24	42
25	44
26	48
27	50
28	51
29	55
30	60
31	61
32	62
33	63
34	66
35	70
36	71
37	77
38	80
39	81
40	82
41	84
42	88
43	90
44	91
45	93
46	99
47	100
48	101
49	102
50	105
51	110
52	111
53	120
54	121
55	122
56	123
57	124
58	126
59	130
60	131
61	140
62	141

n	a(n)
1	10
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	20
12	21
13	22
14	24
15	26
16	28
17	30
18	31
19	33
20	36
21	39
22	40
23	41
24	42
25	44
26	48
27	50
28	51
29	55
30	60
31	61
32	62
33	63
34	66
35	70
36	71
37	77
38	80
39	81
40	82
41	84
42	88
43	90
44	91
45	93
46	99
47	100
48	101
49	102
50	105
51	110
52	111
53	120
54	121
55	122
56	123
57	124
58	126
59	130
60	131
61	140
62	141

n	a(n)
1	10
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	20
12	21
13	22
14	24
15	26
16	28
17	30
18	31
19	33
20	36
21	39
22	40
23	41
24	42
25	44
26	48
27	50
28	51
29	55
30	60
31	61
32	62
33	63
34	66
35	70
36	71
37	77
38	80
39	81
40	82
41	84
42	88
43	90
44	91
45	93
46	99
47	100
48	101
49	102
50	105
51	110
52	111
53	120
54	121
55	122
56	123
57	124
58	126
59	130
60	131
61	140
62	141