A135472 - cp's OEIS frontend

A135472 Shortest and lexicographically earliest string of decimal digits with property that when made into cycle every pair of digits from 0,0 to 9,9 can be seen exactly once.

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	4
10	0
11	5
12	0
13	6
14	0
15	7
16	0
17	8
18	0
19	9
20	1
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	2
38	2
39	3
40	2
41	4
42	2
43	5
44	2
45	6
46	2
47	7
48	2
49	8
50	2
51	9
52	3
53	3
54	4
55	3
56	5
57	3
58	6
59	3
60	7
61	3
62	8
63	3
64	9
65	4
66	4
67	5
68	4
69	6
70	4
71	7
72	4
73	8
74	4
75	9
76	5
77	5
78	6
79	5
80	7
81	5
82	8
83	5
84	9
85	6
86	6
87	7
88	6
89	8
90	6
91	9
92	7
93	7
94	8
95	7
96	9
97	8
98	8
99	9
100	9

[0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 8, 0, 9, 1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 8, 1, 9, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 2, 8, 2, 9, 3, 3, 4, 3, 5, 3, 6, 3, 7, 3, 8, 3, 9, 4, 4, 5, 4, 6, 4, 7, 4, 8, 4, 9, 5, 5, 6, 5, 7, 5, 8, 5, 9, 6, 6, 7, 6, 8, 6, 9, 7, 7, 8, 7, 9, 8, 8, 9, 9]

cp's OEIS Frontend

A135472 Shortest and lexicographically earliest string of decimal digits with property that when made into cycle every pair of digits from 0,0 to 9,9 can be seen exactly once.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	4
10	0
11	5
12	0
13	6
14	0
15	7
16	0
17	8
18	0
19	9
20	1
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	2
38	2
39	3
40	2
41	4
42	2
43	5
44	2
45	6
46	2
47	7
48	2
49	8
50	2
51	9
52	3
53	3
54	4
55	3
56	5
57	3
58	6
59	3
60	7
61	3
62	8
63	3
64	9
65	4
66	4
67	5
68	4
69	6
70	4
71	7
72	4
73	8
74	4
75	9
76	5
77	5
78	6
79	5
80	7
81	5
82	8
83	5
84	9
85	6
86	6
87	7
88	6
89	8
90	6
91	9
92	7
93	7
94	8
95	7
96	9
97	8
98	8
99	9
100	9

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	4
10	0
11	5
12	0
13	6
14	0
15	7
16	0
17	8
18	0
19	9
20	1
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	2
38	2
39	3
40	2
41	4
42	2
43	5
44	2
45	6
46	2
47	7
48	2
49	8
50	2
51	9
52	3
53	3
54	4
55	3
56	5
57	3
58	6
59	3
60	7
61	3
62	8
63	3
64	9
65	4
66	4
67	5
68	4
69	6
70	4
71	7
72	4
73	8
74	4
75	9
76	5
77	5
78	6
79	5
80	7
81	5
82	8
83	5
84	9
85	6
86	6
87	7
88	6
89	8
90	6
91	9
92	7
93	7
94	8
95	7
96	9
97	8
98	8
99	9
100	9

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	4
10	0
11	5
12	0
13	6
14	0
15	7
16	0
17	8
18	0
19	9
20	1
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	2
38	2
39	3
40	2
41	4
42	2
43	5
44	2
45	6
46	2
47	7
48	2
49	8
50	2
51	9
52	3
53	3
54	4
55	3
56	5
57	3
58	6
59	3
60	7
61	3
62	8
63	3
64	9
65	4
66	4
67	5
68	4
69	6
70	4
71	7
72	4
73	8
74	4
75	9
76	5
77	5
78	6
79	5
80	7
81	5
82	8
83	5
84	9
85	6
86	6
87	7
88	6
89	8
90	6
91	9
92	7
93	7
94	8
95	7
96	9
97	8
98	8
99	9
100	9