A248024 - cp's OEIS frontend

A248024 Lexicographically earliest permutation of the positive integers such that the first digit of a(n+1) divides a(n).

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	107
44	108
45	33
46	34
47	109
48	110
49	51
50	35
51	52
52	42
53	36
54	37
55	111
56	38
57	112
58	43
59	113
60	114
61	39
62	115
63	53
64	116
65	44
66	45
67	54
68	60

[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, 107, 108, 33, 34, 109, 110, 51, 35, 52, 42, 36, 37, 111, 38, 112, 43, 113, 114, 39, 115, 53, 116, 44, 45, 54, 60]

cp's OEIS Frontend

A248024 Lexicographically earliest permutation of the positive integers such that the first digit of a(n+1) divides a(n).

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	107
44	108
45	33
46	34
47	109
48	110
49	51
50	35
51	52
52	42
53	36
54	37
55	111
56	38
57	112
58	43
59	113
60	114
61	39
62	115
63	53
64	116
65	44
66	45
67	54
68	60

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	107
44	108
45	33
46	34
47	109
48	110
49	51
50	35
51	52
52	42
53	36
54	37
55	111
56	38
57	112
58	43
59	113
60	114
61	39
62	115
63	53
64	116
65	44
66	45
67	54
68	60

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	107
44	108
45	33
46	34
47	109
48	110
49	51
50	35
51	52
52	42
53	36
54	37
55	111
56	38
57	112
58	43
59	113
60	114
61	39
62	115
63	53
64	116
65	44
66	45
67	54
68	60