A112104 - cp's OEIS frontend

A112104 Unique sequence of 1's and 2's where g.f. A(x) satisfies A(x) = B(B(x)) such that B(x) is an integer series, with A(0) = 0.

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

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

cp's OEIS Frontend

A112104 Unique sequence of 1's and 2's where g.f. A(x) satisfies A(x) = B(B(x)) such that B(x) is an integer series, with A(0) = 0.

Table of values

List of values

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

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

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