A126968 - cp's OEIS frontend

A126968 First digit of a(n) is the a(n)-th digit of S [a(n+1) is the smallest available integer not yet present in S].

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	21
14	14
15	31
16	22
17	15
18	16
19	41
20	32
21	17
22	23
23	24
24	18
25	51
26	19
27	61
28	42
29	111
30	33
31	25
32	112
33	71
34	26
35	34
36	27
37	43
38	113
39	81
40	52
41	114
42	115
43	91
44	62
45	116
46	44
47	28
48	117
49	118
50	119
51	35
52	36
53	29
54	53
55	121
56	122
57	211
58	72
59	123
60	212
61	63
62	37
63	45

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 21, 14, 31, 22, 15, 16, 41, 32, 17, 23, 24, 18, 51, 19, 61, 42, 111, 33, 25, 112, 71, 26, 34, 27, 43, 113, 81, 52, 114, 115, 91, 62, 116, 44, 28, 117, 118, 119, 35, 36, 29, 53, 121, 122, 211, 72, 123, 212, 63, 37, 45]

cp's OEIS Frontend

A126968 First digit of a(n) is the a(n)-th digit of S [a(n+1) is the smallest available integer not yet present in S].

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	21
14	14
15	31
16	22
17	15
18	16
19	41
20	32
21	17
22	23
23	24
24	18
25	51
26	19
27	61
28	42
29	111
30	33
31	25
32	112
33	71
34	26
35	34
36	27
37	43
38	113
39	81
40	52
41	114
42	115
43	91
44	62
45	116
46	44
47	28
48	117
49	118
50	119
51	35
52	36
53	29
54	53
55	121
56	122
57	211
58	72
59	123
60	212
61	63
62	37
63	45

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	21
14	14
15	31
16	22
17	15
18	16
19	41
20	32
21	17
22	23
23	24
24	18
25	51
26	19
27	61
28	42
29	111
30	33
31	25
32	112
33	71
34	26
35	34
36	27
37	43
38	113
39	81
40	52
41	114
42	115
43	91
44	62
45	116
46	44
47	28
48	117
49	118
50	119
51	35
52	36
53	29
54	53
55	121
56	122
57	211
58	72
59	123
60	212
61	63
62	37
63	45

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	21
14	14
15	31
16	22
17	15
18	16
19	41
20	32
21	17
22	23
23	24
24	18
25	51
26	19
27	61
28	42
29	111
30	33
31	25
32	112
33	71
34	26
35	34
36	27
37	43
38	113
39	81
40	52
41	114
42	115
43	91
44	62
45	116
46	44
47	28
48	117
49	118
50	119
51	35
52	36
53	29
54	53
55	121
56	122
57	211
58	72
59	123
60	212
61	63
62	37
63	45