A239216 - cp's OEIS frontend

A239216 The sequence S = a(1), a(2), ... is defined by a(1)=1, if d,e,f are consecutive digits then we do not have d >= e >= f, and S is always extended with the smallest integer not yet present in S.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	23
19	24
20	25
21	26
22	27
23	28
24	29
25	34
26	35
27	36
28	37
29	38
30	39
31	45
32	46
33	47
34	48
35	49
36	56
37	57
38	58
39	59
40	67
41	68
42	69
43	78
44	79
45	89
46	120
47	10
48	11
49	20
50	21
51	22
52	30
53	31
54	32
55	33
56	40
57	41
58	42
59	43
60	44
61	50
62	51
63	52
64	53
65	54
66	55
67	60

[1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 34, 35, 36, 37, 38, 39, 45, 46, 47, 48, 49, 56, 57, 58, 59, 67, 68, 69, 78, 79, 89, 120, 10, 11, 20, 21, 22, 30, 31, 32, 33, 40, 41, 42, 43, 44, 50, 51, 52, 53, 54, 55, 60]

cp's OEIS Frontend

A239216 The sequence S = a(1), a(2), ... is defined by a(1)=1, if d,e,f are consecutive digits then we do not have d >= e >= f, and S is always extended with the smallest integer not yet present in S.

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	12
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	23
19	24
20	25
21	26
22	27
23	28
24	29
25	34
26	35
27	36
28	37
29	38
30	39
31	45
32	46
33	47
34	48
35	49
36	56
37	57
38	58
39	59
40	67
41	68
42	69
43	78
44	79
45	89
46	120
47	10
48	11
49	20
50	21
51	22
52	30
53	31
54	32
55	33
56	40
57	41
58	42
59	43
60	44
61	50
62	51
63	52
64	53
65	54
66	55
67	60

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	23
19	24
20	25
21	26
22	27
23	28
24	29
25	34
26	35
27	36
28	37
29	38
30	39
31	45
32	46
33	47
34	48
35	49
36	56
37	57
38	58
39	59
40	67
41	68
42	69
43	78
44	79
45	89
46	120
47	10
48	11
49	20
50	21
51	22
52	30
53	31
54	32
55	33
56	40
57	41
58	42
59	43
60	44
61	50
62	51
63	52
64	53
65	54
66	55
67	60

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	23
19	24
20	25
21	26
22	27
23	28
24	29
25	34
26	35
27	36
28	37
29	38
30	39
31	45
32	46
33	47
34	48
35	49
36	56
37	57
38	58
39	59
40	67
41	68
42	69
43	78
44	79
45	89
46	120
47	10
48	11
49	20
50	21
51	22
52	30
53	31
54	32
55	33
56	40
57	41
58	42
59	43
60	44
61	50
62	51
63	52
64	53
65	54
66	55
67	60