A023396 - cp's OEIS frontend

A023396 If any odd power of 2 ends with k 1's and 2's, they must be the first k terms of this sequence in reverse order.

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

[2, 1, 1, 2, 2, 1, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 1, 2, 2, 2, 1, 2, 1, 1, 2, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 1]

cp's OEIS Frontend

A023396 If any odd power of 2 ends with k 1's and 2's, they must be the first k terms of this sequence in reverse order.

Table of values

List of values

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

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

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