A381081 - cp's OEIS frontend

A381081 Lexicographically earliest sequence of distinct positive integers such that the string value of a(n) begins with a divisor of a(n-1).

n	a(n)
1	1
2	10
3	2
4	11
5	12
6	3
7	13
8	14
9	7
10	15
11	5
12	16
13	4
14	17
15	18
16	6
17	19
18	100
19	20
20	21
21	30
22	22
23	23
24	101
25	102
26	24
27	8
28	25
29	50
30	26
31	27
32	9
33	31
34	103
35	104
36	28
37	29
38	105
39	32
40	40
41	41
42	106
43	53
44	107
45	108
46	33
47	34
48	109
49	110
50	51
51	35
52	52
53	42
54	36
55	37
56	111
57	38
58	112
59	43
60	113
61	114
62	39
63	115
64	54
65	60
66	44
67	45
68	55
69	56
70	46
71	116
72	47
73	117
74	90
75	57
76	118
77	59
78	119
79	70
80	58
81	120
82	48
83	49
84	71
85	121
86	122

[1, 10, 2, 11, 12, 3, 13, 14, 7, 15, 5, 16, 4, 17, 18, 6, 19, 100, 20, 21, 30, 22, 23, 101, 102, 24, 8, 25, 50, 26, 27, 9, 31, 103, 104, 28, 29, 105, 32, 40, 41, 106, 53, 107, 108, 33, 34, 109, 110, 51, 35, 52, 42, 36, 37, 111, 38, 112, 43, 113, 114, 39, 115, 54, 60, 44, 45, 55, 56, 46, 116, 47, 117, 90, 57, 118, 59, 119, 70, 58, 120, 48, 49, 71, 121, 122]

cp's OEIS Frontend

A381081 Lexicographically earliest sequence of distinct positive integers such that the string value of a(n) begins with a divisor of a(n-1).

Table of values

List of values

n	a(n)
1	1
2	10
3	2
4	11
5	12
6	3
7	13
8	14
9	7
10	15
11	5
12	16
13	4
14	17
15	18
16	6
17	19
18	100
19	20
20	21
21	30
22	22
23	23
24	101
25	102
26	24
27	8
28	25
29	50
30	26
31	27
32	9
33	31
34	103
35	104
36	28
37	29
38	105
39	32
40	40
41	41
42	106
43	53
44	107
45	108
46	33
47	34
48	109
49	110
50	51
51	35
52	52
53	42
54	36
55	37
56	111
57	38
58	112
59	43
60	113
61	114
62	39
63	115
64	54
65	60
66	44
67	45
68	55
69	56
70	46
71	116
72	47
73	117
74	90
75	57
76	118
77	59
78	119
79	70
80	58
81	120
82	48
83	49
84	71
85	121
86	122

n	a(n)
1	1
2	10
3	2
4	11
5	12
6	3
7	13
8	14
9	7
10	15
11	5
12	16
13	4
14	17
15	18
16	6
17	19
18	100
19	20
20	21
21	30
22	22
23	23
24	101
25	102
26	24
27	8
28	25
29	50
30	26
31	27
32	9
33	31
34	103
35	104
36	28
37	29
38	105
39	32
40	40
41	41
42	106
43	53
44	107
45	108
46	33
47	34
48	109
49	110
50	51
51	35
52	52
53	42
54	36
55	37
56	111
57	38
58	112
59	43
60	113
61	114
62	39
63	115
64	54
65	60
66	44
67	45
68	55
69	56
70	46
71	116
72	47
73	117
74	90
75	57
76	118
77	59
78	119
79	70
80	58
81	120
82	48
83	49
84	71
85	121
86	122

n	a(n)
1	1
2	10
3	2
4	11
5	12
6	3
7	13
8	14
9	7
10	15
11	5
12	16
13	4
14	17
15	18
16	6
17	19
18	100
19	20
20	21
21	30
22	22
23	23
24	101
25	102
26	24
27	8
28	25
29	50
30	26
31	27
32	9
33	31
34	103
35	104
36	28
37	29
38	105
39	32
40	40
41	41
42	106
43	53
44	107
45	108
46	33
47	34
48	109
49	110
50	51
51	35
52	52
53	42
54	36
55	37
56	111
57	38
58	112
59	43
60	113
61	114
62	39
63	115
64	54
65	60
66	44
67	45
68	55
69	56
70	46
71	116
72	47
73	117
74	90
75	57
76	118
77	59
78	119
79	70
80	58
81	120
82	48
83	49
84	71
85	121
86	122