A347181 - cp's OEIS frontend

A347181 Lexicographically earliest sequence of distinct positive integers such that the first digit of a(n) is visible in a(n) + a(n+1).

n	a(n)
1	1
2	9
3	10
4	2
5	18
6	3
7	20
8	4
9	30
10	5
11	40
12	6
13	50
14	7
15	60
16	8
17	70
18	17
19	14
20	27
21	15
22	16
23	25
24	37
25	26
26	36
27	47
28	57
29	28
30	24
31	38
32	35
33	48
34	46
35	58
36	67
37	19
38	12
39	29
40	13
41	68
42	78
43	39
44	34
45	49
46	45
47	59
48	56
49	69
50	77
51	80
52	88
53	90
54	79
55	91
56	98
57	11
58	89
59	92
60	87
61	21
62	31
63	22
64	99
65	93
66	66
67	94
68	55
69	95
70	44
71	96
72	23
73	97
74	32
75	41
76	33
77	100
78	42

[1, 9, 10, 2, 18, 3, 20, 4, 30, 5, 40, 6, 50, 7, 60, 8, 70, 17, 14, 27, 15, 16, 25, 37, 26, 36, 47, 57, 28, 24, 38, 35, 48, 46, 58, 67, 19, 12, 29, 13, 68, 78, 39, 34, 49, 45, 59, 56, 69, 77, 80, 88, 90, 79, 91, 98, 11, 89, 92, 87, 21, 31, 22, 99, 93, 66, 94, 55, 95, 44, 96, 23, 97, 32, 41, 33, 100, 42]

cp's OEIS Frontend

A347181 Lexicographically earliest sequence of distinct positive integers such that the first digit of a(n) is visible in a(n) + a(n+1).

Table of values

List of values

n	a(n)
1	1
2	9
3	10
4	2
5	18
6	3
7	20
8	4
9	30
10	5
11	40
12	6
13	50
14	7
15	60
16	8
17	70
18	17
19	14
20	27
21	15
22	16
23	25
24	37
25	26
26	36
27	47
28	57
29	28
30	24
31	38
32	35
33	48
34	46
35	58
36	67
37	19
38	12
39	29
40	13
41	68
42	78
43	39
44	34
45	49
46	45
47	59
48	56
49	69
50	77
51	80
52	88
53	90
54	79
55	91
56	98
57	11
58	89
59	92
60	87
61	21
62	31
63	22
64	99
65	93
66	66
67	94
68	55
69	95
70	44
71	96
72	23
73	97
74	32
75	41
76	33
77	100
78	42

n	a(n)
1	1
2	9
3	10
4	2
5	18
6	3
7	20
8	4
9	30
10	5
11	40
12	6
13	50
14	7
15	60
16	8
17	70
18	17
19	14
20	27
21	15
22	16
23	25
24	37
25	26
26	36
27	47
28	57
29	28
30	24
31	38
32	35
33	48
34	46
35	58
36	67
37	19
38	12
39	29
40	13
41	68
42	78
43	39
44	34
45	49
46	45
47	59
48	56
49	69
50	77
51	80
52	88
53	90
54	79
55	91
56	98
57	11
58	89
59	92
60	87
61	21
62	31
63	22
64	99
65	93
66	66
67	94
68	55
69	95
70	44
71	96
72	23
73	97
74	32
75	41
76	33
77	100
78	42

n	a(n)
1	1
2	9
3	10
4	2
5	18
6	3
7	20
8	4
9	30
10	5
11	40
12	6
13	50
14	7
15	60
16	8
17	70
18	17
19	14
20	27
21	15
22	16
23	25
24	37
25	26
26	36
27	47
28	57
29	28
30	24
31	38
32	35
33	48
34	46
35	58
36	67
37	19
38	12
39	29
40	13
41	68
42	78
43	39
44	34
45	49
46	45
47	59
48	56
49	69
50	77
51	80
52	88
53	90
54	79
55	91
56	98
57	11
58	89
59	92
60	87
61	21
62	31
63	22
64	99
65	93
66	66
67	94
68	55
69	95
70	44
71	96
72	23
73	97
74	32
75	41
76	33
77	100
78	42