A289285 - cp's OEIS frontend

A289285 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 7. The digit 0 is not allowed.

n	a(n)
1	1
2	6
3	11
4	61
5	62
6	5
7	2
8	51
9	63
10	4
11	3
12	41
13	64
14	31
15	65
16	21
17	66
18	12
19	52
20	53
21	42
22	54
23	32
24	55
25	22
26	56
27	13
28	43
29	44
30	33
31	45
32	23
33	46
34	14
35	34
36	35
37	24
38	36
39	15
40	25
41	26
42	16
43	17

[1, 6, 11, 61, 62, 5, 2, 51, 63, 4, 3, 41, 64, 31, 65, 21, 66, 12, 52, 53, 42, 54, 32, 55, 22, 56, 13, 43, 44, 33, 45, 23, 46, 14, 34, 35, 24, 36, 15, 25, 26, 16, 17]

cp's OEIS Frontend

A289285 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 7. The digit 0 is not allowed.

Table of values

List of values

n	a(n)
1	1
2	6
3	11
4	61
5	62
6	5
7	2
8	51
9	63
10	4
11	3
12	41
13	64
14	31
15	65
16	21
17	66
18	12
19	52
20	53
21	42
22	54
23	32
24	55
25	22
26	56
27	13
28	43
29	44
30	33
31	45
32	23
33	46
34	14
35	34
36	35
37	24
38	36
39	15
40	25
41	26
42	16
43	17

n	a(n)
1	1
2	6
3	11
4	61
5	62
6	5
7	2
8	51
9	63
10	4
11	3
12	41
13	64
14	31
15	65
16	21
17	66
18	12
19	52
20	53
21	42
22	54
23	32
24	55
25	22
26	56
27	13
28	43
29	44
30	33
31	45
32	23
33	46
34	14
35	34
36	35
37	24
38	36
39	15
40	25
41	26
42	16
43	17

n	a(n)
1	1
2	6
3	11
4	61
5	62
6	5
7	2
8	51
9	63
10	4
11	3
12	41
13	64
14	31
15	65
16	21
17	66
18	12
19	52
20	53
21	42
22	54
23	32
24	55
25	22
26	56
27	13
28	43
29	44
30	33
31	45
32	23
33	46
34	14
35	34
36	35
37	24
38	36
39	15
40	25
41	26
42	16
43	17