A289288 - cp's OEIS frontend

A289288 Starting with a(1) = 1, a(n) = smallest nonnegative integer not yet in the sequence such that the last digit of a(n-1) plus the first digit of a(n) is equal to 10. The digit 0 is not allowed.

n	a(n)
1	1
2	9
3	11
4	91
5	92
6	8
7	2
8	81
9	93
10	7
11	3
12	71
13	94
14	6
15	4
16	61
17	95
18	5
19	51
20	96
21	41
22	97
23	31
24	98
25	21
26	99
27	12
28	82
29	83
30	72
31	84
32	62
33	85
34	52
35	86
36	42
37	87
38	32
39	88
40	22
41	89
42	13
43	73
44	74
45	63
46	75
47	53
48	76
49	43
50	77
51	33
52	78
53	23
54	79
55	14
56	64
57	65
58	54
59	66
60	44
61	67
62	34
63	68
64	24
65	69
66	15
67	55
68	56
69	45
70	57
71	35
72	58
73	25
74	59
75	16
76	46
77	47
78	36
79	48
80	26
81	49
82	17
83	37
84	38
85	27
86	39
87	18
88	28
89	29
90	19
91	111
92	911
93	912
94	811
95	913
96	711
97	914
98	611
99	915
100	511
101	916
102	411
103	917
104	311
105	918
106	211
107	919
108	112
109	812
110	813
111	712

[1, 9, 11, 91, 92, 8, 2, 81, 93, 7, 3, 71, 94, 6, 4, 61, 95, 5, 51, 96, 41, 97, 31, 98, 21, 99, 12, 82, 83, 72, 84, 62, 85, 52, 86, 42, 87, 32, 88, 22, 89, 13, 73, 74, 63, 75, 53, 76, 43, 77, 33, 78, 23, 79, 14, 64, 65, 54, 66, 44, 67, 34, 68, 24, 69, 15, 55, 56, 45, 57, 35, 58, 25, 59, 16, 46, 47, 36, 48, 26, 49, 17, 37, 38, 27, 39, 18, 28, 29, 19, 111, 911, 912, 811, 913, 711, 914, 611, 915, 511, 916, 411, 917, 311, 918, 211, 919, 112, 812, 813, 712]

cp's OEIS Frontend

A289288 Starting with a(1) = 1, a(n) = smallest nonnegative integer not yet in the sequence such that the last digit of a(n-1) plus the first digit of a(n) is equal to 10. The digit 0 is not allowed.

Table of values

List of values

n	a(n)
1	1
2	9
3	11
4	91
5	92
6	8
7	2
8	81
9	93
10	7
11	3
12	71
13	94
14	6
15	4
16	61
17	95
18	5
19	51
20	96
21	41
22	97
23	31
24	98
25	21
26	99
27	12
28	82
29	83
30	72
31	84
32	62
33	85
34	52
35	86
36	42
37	87
38	32
39	88
40	22
41	89
42	13
43	73
44	74
45	63
46	75
47	53
48	76
49	43
50	77
51	33
52	78
53	23
54	79
55	14
56	64
57	65
58	54
59	66
60	44
61	67
62	34
63	68
64	24
65	69
66	15
67	55
68	56
69	45
70	57
71	35
72	58
73	25
74	59
75	16
76	46
77	47
78	36
79	48
80	26
81	49
82	17
83	37
84	38
85	27
86	39
87	18
88	28
89	29
90	19
91	111
92	911
93	912
94	811
95	913
96	711
97	914
98	611
99	915
100	511
101	916
102	411
103	917
104	311
105	918
106	211
107	919
108	112
109	812
110	813
111	712

n	a(n)
1	1
2	9
3	11
4	91
5	92
6	8
7	2
8	81
9	93
10	7
11	3
12	71
13	94
14	6
15	4
16	61
17	95
18	5
19	51
20	96
21	41
22	97
23	31
24	98
25	21
26	99
27	12
28	82
29	83
30	72
31	84
32	62
33	85
34	52
35	86
36	42
37	87
38	32
39	88
40	22
41	89
42	13
43	73
44	74
45	63
46	75
47	53
48	76
49	43
50	77
51	33
52	78
53	23
54	79
55	14
56	64
57	65
58	54
59	66
60	44
61	67
62	34
63	68
64	24
65	69
66	15
67	55
68	56
69	45
70	57
71	35
72	58
73	25
74	59
75	16
76	46
77	47
78	36
79	48
80	26
81	49
82	17
83	37
84	38
85	27
86	39
87	18
88	28
89	29
90	19
91	111
92	911
93	912
94	811
95	913
96	711
97	914
98	611
99	915
100	511
101	916
102	411
103	917
104	311
105	918
106	211
107	919
108	112
109	812
110	813
111	712

n	a(n)
1	1
2	9
3	11
4	91
5	92
6	8
7	2
8	81
9	93
10	7
11	3
12	71
13	94
14	6
15	4
16	61
17	95
18	5
19	51
20	96
21	41
22	97
23	31
24	98
25	21
26	99
27	12
28	82
29	83
30	72
31	84
32	62
33	85
34	52
35	86
36	42
37	87
38	32
39	88
40	22
41	89
42	13
43	73
44	74
45	63
46	75
47	53
48	76
49	43
50	77
51	33
52	78
53	23
54	79
55	14
56	64
57	65
58	54
59	66
60	44
61	67
62	34
63	68
64	24
65	69
66	15
67	55
68	56
69	45
70	57
71	35
72	58
73	25
74	59
75	16
76	46
77	47
78	36
79	48
80	26
81	49
82	17
83	37
84	38
85	27
86	39
87	18
88	28
89	29
90	19
91	111
92	911
93	912
94	811
95	913
96	711
97	914
98	611
99	915
100	511
101	916
102	411
103	917
104	311
105	918
106	211
107	919
108	112
109	812
110	813
111	712