A262356 - cp's OEIS frontend

A262356 a(1) = 1; for n > 1, let s denote the digit-string of a(n-1) with the first digit omitted. Then a(n) is the smallest number not yet present which starts with s, omitting leading zeros.

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

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

cp's OEIS Frontend

A262356 a(1) = 1; for n > 1, let s denote the digit-string of a(n-1) with the first digit omitted. Then a(n) is the smallest number not yet present which starts with s, omitting leading zeros.

Table of values

List of values

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

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

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