A374530 - cp's OEIS frontend

A374530 Lexicographically earliest permutation of the nonnegative terms such that the absolute difference between the rightmost digit of a(n) and the leftmost digit of a(n+1) is the smallest possible one.

n	a(n)
1	0
2	1
3	10
4	11
5	12
6	2
7	20
8	13
9	3
10	30
11	14
12	4
13	40
14	15
15	5
16	50
17	16
18	6
19	60
20	17
21	7
22	70
23	18
24	8
25	80
26	19
27	9
28	90
29	100
30	101
31	102
32	21
33	103
34	31
35	104
36	41
37	105
38	51
39	106
40	61
41	107
42	71
43	108
44	81
45	109
46	91
47	110
48	111
49	112
50	22
51	23
52	32
53	24
54	42
55	25
56	52
57	26
58	62
59	27
60	72
61	28
62	82
63	29
64	92
65	200
66	113
67	33
68	34
69	43
70	35
71	53
72	36
73	63
74	37
75	73

[0, 1, 10, 11, 12, 2, 20, 13, 3, 30, 14, 4, 40, 15, 5, 50, 16, 6, 60, 17, 7, 70, 18, 8, 80, 19, 9, 90, 100, 101, 102, 21, 103, 31, 104, 41, 105, 51, 106, 61, 107, 71, 108, 81, 109, 91, 110, 111, 112, 22, 23, 32, 24, 42, 25, 52, 26, 62, 27, 72, 28, 82, 29, 92, 200, 113, 33, 34, 43, 35, 53, 36, 63, 37, 73]

cp's OEIS Frontend

A374530 Lexicographically earliest permutation of the nonnegative terms such that the absolute difference between the rightmost digit of a(n) and the leftmost digit of a(n+1) is the smallest possible one.

Table of values

List of values

n	a(n)
1	0
2	1
3	10
4	11
5	12
6	2
7	20
8	13
9	3
10	30
11	14
12	4
13	40
14	15
15	5
16	50
17	16
18	6
19	60
20	17
21	7
22	70
23	18
24	8
25	80
26	19
27	9
28	90
29	100
30	101
31	102
32	21
33	103
34	31
35	104
36	41
37	105
38	51
39	106
40	61
41	107
42	71
43	108
44	81
45	109
46	91
47	110
48	111
49	112
50	22
51	23
52	32
53	24
54	42
55	25
56	52
57	26
58	62
59	27
60	72
61	28
62	82
63	29
64	92
65	200
66	113
67	33
68	34
69	43
70	35
71	53
72	36
73	63
74	37
75	73

n	a(n)
1	0
2	1
3	10
4	11
5	12
6	2
7	20
8	13
9	3
10	30
11	14
12	4
13	40
14	15
15	5
16	50
17	16
18	6
19	60
20	17
21	7
22	70
23	18
24	8
25	80
26	19
27	9
28	90
29	100
30	101
31	102
32	21
33	103
34	31
35	104
36	41
37	105
38	51
39	106
40	61
41	107
42	71
43	108
44	81
45	109
46	91
47	110
48	111
49	112
50	22
51	23
52	32
53	24
54	42
55	25
56	52
57	26
58	62
59	27
60	72
61	28
62	82
63	29
64	92
65	200
66	113
67	33
68	34
69	43
70	35
71	53
72	36
73	63
74	37
75	73

n	a(n)
1	0
2	1
3	10
4	11
5	12
6	2
7	20
8	13
9	3
10	30
11	14
12	4
13	40
14	15
15	5
16	50
17	16
18	6
19	60
20	17
21	7
22	70
23	18
24	8
25	80
26	19
27	9
28	90
29	100
30	101
31	102
32	21
33	103
34	31
35	104
36	41
37	105
38	51
39	106
40	61
41	107
42	71
43	108
44	81
45	109
46	91
47	110
48	111
49	112
50	22
51	23
52	32
53	24
54	42
55	25
56	52
57	26
58	62
59	27
60	72
61	28
62	82
63	29
64	92
65	200
66	113
67	33
68	34
69	43
70	35
71	53
72	36
73	63
74	37
75	73