A023406 - cp's OEIS frontend

A023406 If any even power of 2 ends with k 1's and 6's, they must be the first k terms of this sequence in reverse order.

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

[6, 1, 6, 1, 1, 1, 6, 1, 6, 1, 6, 6, 1, 6, 6, 6, 6, 6, 6, 1, 6, 1, 1, 1, 6, 6, 6, 6, 6, 6, 6, 6, 1, 6, 6, 1, 6, 6, 6, 6, 6, 1, 1, 1, 1, 6, 6, 1, 6, 1, 1, 6, 1, 1, 6, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 6, 1, 6, 6, 6, 1, 1, 6, 6, 6, 1, 6, 6, 6, 1, 1, 1, 1, 1, 6, 1, 1, 6, 6, 6, 1, 6, 1, 6, 6, 1, 6, 1, 6, 6, 1, 1, 1, 1, 1, 6, 1, 1]

cp's OEIS Frontend

A023406 If any even power of 2 ends with k 1's and 6'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	1
3	6
4	1
5	1
6	1
7	6
8	1
9	6
10	1
11	6
12	6
13	1
14	6
15	6
16	6
17	6
18	6
19	6
20	1
21	6
22	1
23	1
24	1
25	6
26	6
27	6
28	6
29	6
30	6
31	6
32	6
33	1
34	6
35	6
36	1
37	6
38	6
39	6
40	6
41	6
42	1
43	1
44	1
45	1
46	6
47	6
48	1
49	6
50	1
51	1
52	6
53	1
54	1
55	6
56	1
57	1
58	6
59	1
60	1
61	1
62	1
63	6
64	1
65	1
66	6
67	1
68	6
69	6
70	6
71	1
72	1
73	6
74	6
75	6
76	1
77	6
78	6
79	6
80	1
81	1
82	1
83	1
84	1
85	6
86	1
87	1
88	6
89	6
90	6
91	1
92	6
93	1
94	6
95	6
96	1
97	6
98	1
99	6
100	6
101	1
102	1
103	1
104	1
105	1
106	6
107	1
108	1

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

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