A319154 - cp's OEIS frontend

A319154 a(n) is the smallest nonnegative integer not yet in the sequence that starts with the ending digit of a(n-1); a(1)=0; initial zeros are dropped.

n	a(n)
1	0
2	1
3	10
4	2
5	20
6	3
7	30
8	4
9	40
10	5
11	50
12	6
13	60
14	7
15	70
16	8
17	80
18	9
19	90
20	11
21	12
22	21
23	13
24	31
25	14
26	41
27	15
28	51
29	16
30	61
31	17
32	71
33	18
34	81
35	19
36	91
37	100
38	22
39	23
40	32
41	24
42	42
43	25
44	52
45	26
46	62
47	27
48	72
49	28
50	82
51	29
52	92
53	200
54	33
55	34
56	43
57	35
58	53
59	36
60	63
61	37
62	73
63	38
64	83
65	39
66	93
67	300
68	44
69	45
70	54

[0, 1, 10, 2, 20, 3, 30, 4, 40, 5, 50, 6, 60, 7, 70, 8, 80, 9, 90, 11, 12, 21, 13, 31, 14, 41, 15, 51, 16, 61, 17, 71, 18, 81, 19, 91, 100, 22, 23, 32, 24, 42, 25, 52, 26, 62, 27, 72, 28, 82, 29, 92, 200, 33, 34, 43, 35, 53, 36, 63, 37, 73, 38, 83, 39, 93, 300, 44, 45, 54]

cp's OEIS Frontend

A319154 a(n) is the smallest nonnegative integer not yet in the sequence that starts with the ending digit of a(n-1); a(1)=0; initial zeros are dropped.

Table of values

List of values

n	a(n)
1	0
2	1
3	10
4	2
5	20
6	3
7	30
8	4
9	40
10	5
11	50
12	6
13	60
14	7
15	70
16	8
17	80
18	9
19	90
20	11
21	12
22	21
23	13
24	31
25	14
26	41
27	15
28	51
29	16
30	61
31	17
32	71
33	18
34	81
35	19
36	91
37	100
38	22
39	23
40	32
41	24
42	42
43	25
44	52
45	26
46	62
47	27
48	72
49	28
50	82
51	29
52	92
53	200
54	33
55	34
56	43
57	35
58	53
59	36
60	63
61	37
62	73
63	38
64	83
65	39
66	93
67	300
68	44
69	45
70	54

n	a(n)
1	0
2	1
3	10
4	2
5	20
6	3
7	30
8	4
9	40
10	5
11	50
12	6
13	60
14	7
15	70
16	8
17	80
18	9
19	90
20	11
21	12
22	21
23	13
24	31
25	14
26	41
27	15
28	51
29	16
30	61
31	17
32	71
33	18
34	81
35	19
36	91
37	100
38	22
39	23
40	32
41	24
42	42
43	25
44	52
45	26
46	62
47	27
48	72
49	28
50	82
51	29
52	92
53	200
54	33
55	34
56	43
57	35
58	53
59	36
60	63
61	37
62	73
63	38
64	83
65	39
66	93
67	300
68	44
69	45
70	54

n	a(n)
1	0
2	1
3	10
4	2
5	20
6	3
7	30
8	4
9	40
10	5
11	50
12	6
13	60
14	7
15	70
16	8
17	80
18	9
19	90
20	11
21	12
22	21
23	13
24	31
25	14
26	41
27	15
28	51
29	16
30	61
31	17
32	71
33	18
34	81
35	19
36	91
37	100
38	22
39	23
40	32
41	24
42	42
43	25
44	52
45	26
46	62
47	27
48	72
49	28
50	82
51	29
52	92
53	200
54	33
55	34
56	43
57	35
58	53
59	36
60	63
61	37
62	73
63	38
64	83
65	39
66	93
67	300
68	44
69	45
70	54