A248025 - cp's OEIS frontend

A248025 Lexicographically earliest permutation of the positive integers such that the first digit of a(n+1) is the digital root of a(n).

n	a(n)
1	1
2	10
3	11
4	2
5	20
6	21
7	3
8	30
9	31
10	4
11	40
12	41
13	5
14	50
15	51
16	6
17	60
18	61
19	7
20	70
21	71
22	8
23	80
24	81
25	9
26	90
27	91
28	12
29	32
30	52
31	72
32	92
33	22
34	42
35	62
36	82
37	13
38	43
39	73
40	14
41	53
42	83
43	23
44	54
45	93
46	33
47	63
48	94
49	44
50	84
51	34
52	74
53	24
54	64
55	15
56	65
57	25
58	75
59	35
60	85
61	45
62	95
63	55
64	16
65	76
66	46
67	17
68	86
69	56
70	26
71	87
72	66
73	36
74	96

[1, 10, 11, 2, 20, 21, 3, 30, 31, 4, 40, 41, 5, 50, 51, 6, 60, 61, 7, 70, 71, 8, 80, 81, 9, 90, 91, 12, 32, 52, 72, 92, 22, 42, 62, 82, 13, 43, 73, 14, 53, 83, 23, 54, 93, 33, 63, 94, 44, 84, 34, 74, 24, 64, 15, 65, 25, 75, 35, 85, 45, 95, 55, 16, 76, 46, 17, 86, 56, 26, 87, 66, 36, 96]

cp's OEIS Frontend

A248025 Lexicographically earliest permutation of the positive integers such that the first digit of a(n+1) is the digital root of a(n).

Table of values

List of values

n	a(n)
1	1
2	10
3	11
4	2
5	20
6	21
7	3
8	30
9	31
10	4
11	40
12	41
13	5
14	50
15	51
16	6
17	60
18	61
19	7
20	70
21	71
22	8
23	80
24	81
25	9
26	90
27	91
28	12
29	32
30	52
31	72
32	92
33	22
34	42
35	62
36	82
37	13
38	43
39	73
40	14
41	53
42	83
43	23
44	54
45	93
46	33
47	63
48	94
49	44
50	84
51	34
52	74
53	24
54	64
55	15
56	65
57	25
58	75
59	35
60	85
61	45
62	95
63	55
64	16
65	76
66	46
67	17
68	86
69	56
70	26
71	87
72	66
73	36
74	96

n	a(n)
1	1
2	10
3	11
4	2
5	20
6	21
7	3
8	30
9	31
10	4
11	40
12	41
13	5
14	50
15	51
16	6
17	60
18	61
19	7
20	70
21	71
22	8
23	80
24	81
25	9
26	90
27	91
28	12
29	32
30	52
31	72
32	92
33	22
34	42
35	62
36	82
37	13
38	43
39	73
40	14
41	53
42	83
43	23
44	54
45	93
46	33
47	63
48	94
49	44
50	84
51	34
52	74
53	24
54	64
55	15
56	65
57	25
58	75
59	35
60	85
61	45
62	95
63	55
64	16
65	76
66	46
67	17
68	86
69	56
70	26
71	87
72	66
73	36
74	96

n	a(n)
1	1
2	10
3	11
4	2
5	20
6	21
7	3
8	30
9	31
10	4
11	40
12	41
13	5
14	50
15	51
16	6
17	60
18	61
19	7
20	70
21	71
22	8
23	80
24	81
25	9
26	90
27	91
28	12
29	32
30	52
31	72
32	92
33	22
34	42
35	62
36	82
37	13
38	43
39	73
40	14
41	53
42	83
43	23
44	54
45	93
46	33
47	63
48	94
49	44
50	84
51	34
52	74
53	24
54	64
55	15
56	65
57	25
58	75
59	35
60	85
61	45
62	95
63	55
64	16
65	76
66	46
67	17
68	86
69	56
70	26
71	87
72	66
73	36
74	96