A023410 - cp's OEIS frontend

A023410 In base 10, if any power of 2 ends with k 6's and 9's, they must be the first k terms of this sequence in reverse order.

n	a(n)
1	6
2	9
3	6
4	9
5	6
6	6
7	6
8	9
9	6
10	9
11	6
12	9
13	9
14	6
15	9
16	9
17	9
18	9
19	9
20	9
21	6
22	9
23	6
24	6
25	6
26	9
27	9
28	9
29	9
30	9
31	9
32	9
33	9
34	6
35	9
36	9
37	6
38	9
39	9
40	9
41	9
42	9
43	6
44	6
45	6
46	6
47	9
48	9
49	6
50	9
51	6
52	6
53	9
54	6
55	6
56	9
57	6
58	6
59	9
60	6
61	6
62	6
63	6
64	9
65	6
66	6
67	9
68	6
69	9
70	9
71	9
72	6
73	6
74	9
75	9
76	9
77	6
78	9
79	9
80	9
81	6
82	6
83	6
84	6
85	6
86	9
87	6
88	6
89	9
90	9
91	9
92	6
93	9
94	6
95	9
96	9
97	6
98	9
99	6
100	9
101	9
102	6
103	6
104	6
105	6
106	6
107	9
108	6

[6, 9, 6, 9, 6, 6, 6, 9, 6, 9, 6, 9, 9, 6, 9, 9, 9, 9, 9, 9, 6, 9, 6, 6, 6, 9, 9, 9, 9, 9, 9, 9, 9, 6, 9, 9, 6, 9, 9, 9, 9, 9, 6, 6, 6, 6, 9, 9, 6, 9, 6, 6, 9, 6, 6, 9, 6, 6, 9, 6, 6, 6, 6, 9, 6, 6, 9, 6, 9, 9, 9, 6, 6, 9, 9, 9, 6, 9, 9, 9, 6, 6, 6, 6, 6, 9, 6, 6, 9, 9, 9, 6, 9, 6, 9, 9, 6, 9, 6, 9, 9, 6, 6, 6, 6, 6, 9, 6]

cp's OEIS Frontend

A023410 In base 10, if any power of 2 ends with k 6's and 9's, they must be the first k terms of this sequence in reverse order.

Table of values

List of values

n	a(n)
1	6
2	9
3	6
4	9
5	6
6	6
7	6
8	9
9	6
10	9
11	6
12	9
13	9
14	6
15	9
16	9
17	9
18	9
19	9
20	9
21	6
22	9
23	6
24	6
25	6
26	9
27	9
28	9
29	9
30	9
31	9
32	9
33	9
34	6
35	9
36	9
37	6
38	9
39	9
40	9
41	9
42	9
43	6
44	6
45	6
46	6
47	9
48	9
49	6
50	9
51	6
52	6
53	9
54	6
55	6
56	9
57	6
58	6
59	9
60	6
61	6
62	6
63	6
64	9
65	6
66	6
67	9
68	6
69	9
70	9
71	9
72	6
73	6
74	9
75	9
76	9
77	6
78	9
79	9
80	9
81	6
82	6
83	6
84	6
85	6
86	9
87	6
88	6
89	9
90	9
91	9
92	6
93	9
94	6
95	9
96	9
97	6
98	9
99	6
100	9
101	9
102	6
103	6
104	6
105	6
106	6
107	9
108	6

n	a(n)
1	6
2	9
3	6
4	9
5	6
6	6
7	6
8	9
9	6
10	9
11	6
12	9
13	9
14	6
15	9
16	9
17	9
18	9
19	9
20	9
21	6
22	9
23	6
24	6
25	6
26	9
27	9
28	9
29	9
30	9
31	9
32	9
33	9
34	6
35	9
36	9
37	6
38	9
39	9
40	9
41	9
42	9
43	6
44	6
45	6
46	6
47	9
48	9
49	6
50	9
51	6
52	6
53	9
54	6
55	6
56	9
57	6
58	6
59	9
60	6
61	6
62	6
63	6
64	9
65	6
66	6
67	9
68	6
69	9
70	9
71	9
72	6
73	6
74	9
75	9
76	9
77	6
78	9
79	9
80	9
81	6
82	6
83	6
84	6
85	6
86	9
87	6
88	6
89	9
90	9
91	9
92	6
93	9
94	6
95	9
96	9
97	6
98	9
99	6
100	9
101	9
102	6
103	6
104	6
105	6
106	6
107	9
108	6

n	a(n)
1	6
2	9
3	6
4	9
5	6
6	6
7	6
8	9
9	6
10	9
11	6
12	9
13	9
14	6
15	9
16	9
17	9
18	9
19	9
20	9
21	6
22	9
23	6
24	6
25	6
26	9
27	9
28	9
29	9
30	9
31	9
32	9
33	9
34	6
35	9
36	9
37	6
38	9
39	9
40	9
41	9
42	9
43	6
44	6
45	6
46	6
47	9
48	9
49	6
50	9
51	6
52	6
53	9
54	6
55	6
56	9
57	6
58	6
59	9
60	6
61	6
62	6
63	6
64	9
65	6
66	6
67	9
68	6
69	9
70	9
71	9
72	6
73	6
74	9
75	9
76	9
77	6
78	9
79	9
80	9
81	6
82	6
83	6
84	6
85	6
86	9
87	6
88	6
89	9
90	9
91	9
92	6
93	9
94	6
95	9
96	9
97	6
98	9
99	6
100	9
101	9
102	6
103	6
104	6
105	6
106	6
107	9
108	6