A299971 - cp's OEIS frontend

A299971 Lexicographic first sequence of positive integers such that a(n) + a(n+1) has a digit 0, and no term occurs twice.

n	a(n)
1	1
2	9
3	11
4	19
5	21
6	29
7	31
8	39
9	41
10	49
11	51
12	50
13	10
14	20
15	30
16	40
17	60
18	42
19	8
20	2
21	18
22	12
23	28
24	22
25	38
26	32
27	48
28	52
29	53
30	7
31	3
32	17
33	13
34	27
35	23
36	37
37	33
38	47
39	43
40	57
41	44
42	6
43	4
44	16
45	14
46	26
47	24
48	36
49	34
50	46
51	54
52	55
53	5
54	15
55	25
56	35
57	45
58	56
59	64
60	66
61	74
62	76
63	84
64	86
65	94
66	96
67	104
68	97

[1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 50, 10, 20, 30, 40, 60, 42, 8, 2, 18, 12, 28, 22, 38, 32, 48, 52, 53, 7, 3, 17, 13, 27, 23, 37, 33, 47, 43, 57, 44, 6, 4, 16, 14, 26, 24, 36, 34, 46, 54, 55, 5, 15, 25, 35, 45, 56, 64, 66, 74, 76, 84, 86, 94, 96, 104, 97]

cp's OEIS Frontend

A299971 Lexicographic first sequence of positive integers such that a(n) + a(n+1) has a digit 0, and no term occurs twice.

Table of values

List of values

n	a(n)
1	1
2	9
3	11
4	19
5	21
6	29
7	31
8	39
9	41
10	49
11	51
12	50
13	10
14	20
15	30
16	40
17	60
18	42
19	8
20	2
21	18
22	12
23	28
24	22
25	38
26	32
27	48
28	52
29	53
30	7
31	3
32	17
33	13
34	27
35	23
36	37
37	33
38	47
39	43
40	57
41	44
42	6
43	4
44	16
45	14
46	26
47	24
48	36
49	34
50	46
51	54
52	55
53	5
54	15
55	25
56	35
57	45
58	56
59	64
60	66
61	74
62	76
63	84
64	86
65	94
66	96
67	104
68	97

n	a(n)
1	1
2	9
3	11
4	19
5	21
6	29
7	31
8	39
9	41
10	49
11	51
12	50
13	10
14	20
15	30
16	40
17	60
18	42
19	8
20	2
21	18
22	12
23	28
24	22
25	38
26	32
27	48
28	52
29	53
30	7
31	3
32	17
33	13
34	27
35	23
36	37
37	33
38	47
39	43
40	57
41	44
42	6
43	4
44	16
45	14
46	26
47	24
48	36
49	34
50	46
51	54
52	55
53	5
54	15
55	25
56	35
57	45
58	56
59	64
60	66
61	74
62	76
63	84
64	86
65	94
66	96
67	104
68	97

n	a(n)
1	1
2	9
3	11
4	19
5	21
6	29
7	31
8	39
9	41
10	49
11	51
12	50
13	10
14	20
15	30
16	40
17	60
18	42
19	8
20	2
21	18
22	12
23	28
24	22
25	38
26	32
27	48
28	52
29	53
30	7
31	3
32	17
33	13
34	27
35	23
36	37
37	33
38	47
39	43
40	57
41	44
42	6
43	4
44	16
45	14
46	26
47	24
48	36
49	34
50	46
51	54
52	55
53	5
54	15
55	25
56	35
57	45
58	56
59	64
60	66
61	74
62	76
63	84
64	86
65	94
66	96
67	104
68	97