A083985 - cp's OEIS frontend

A083985 If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. Then a(n) = gcd(A101594(n), SC(A101594(n))).

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

[3, 1, 1, 3, 1, 1, 9, 1, 3, 1, 6, 1, 2, 9, 2, 1, 1, 1, 1, 1, 9, 1, 1, 3, 1, 6, 1, 9, 2, 1, 12, 1, 3, 1, 1, 9, 1, 3, 1, 1, 1, 2, 9, 2, 1, 1, 2, 3, 1, 9, 1, 1, 3, 1, 3, 1, 9, 2, 1, 12, 1, 2, 3, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 7, 1, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 2, 1, 6]

cp's OEIS Frontend

A083985 If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. Then a(n) = gcd(A101594(n), SC(A101594(n))).

Table of values

List of values

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

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

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