A239215 - cp's OEIS frontend

A239215 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	11
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	22
20	23
21	24
22	25
23	26
24	27
25	28
26	29
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	44
35	45
36	46
37	47
38	48
39	49
40	55
41	56
42	57
43	58
44	59
45	66
46	67
47	68
48	69
49	77
50	78
51	79
52	88
53	89
54	99
55	999
56	9999
57	99999
58	999999
59	9999999
60	99999999

[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 33, 34, 35, 36, 37, 38, 39, 44, 45, 46, 47, 48, 49, 55, 56, 57, 58, 59, 66, 67, 68, 69, 77, 78, 79, 88, 89, 99, 999, 9999, 99999, 999999, 9999999, 99999999]

cp's OEIS Frontend

A239215 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