A106216 - cp's OEIS frontend

A106216 Coefficients of g.f. A(x) where 0 <= a(n) <= 2 for all n>1, with initial terms {1,3}, such that A(x)^(1/3) consists entirely of integer coefficients.

n	a(n)
0	1
1	3
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	2
28	0
29	0
30	1
31	0
32	0
33	2
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	1
58	0
59	0
60	0
61	0
62	0
63	1
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	0
72	1
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	0
93	2
94	0
95	0
96	2
97	0
98	0
99	1
100	0
101	0
102	0
103	0
104	0

[1, 3, 0, 1, 0, 0, 2, 0, 0, 2, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 2, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 2, 0, 0, 1, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A106216 Coefficients of g.f. A(x) where 0 <= a(n) <= 2 for all n>1, with initial terms {1,3}, such that A(x)^(1/3) consists entirely of integer coefficients.

Table of values

List of values

n	a(n)
0	1
1	3
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	2
28	0
29	0
30	1
31	0
32	0
33	2
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	1
58	0
59	0
60	0
61	0
62	0
63	1
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	0
72	1
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	0
93	2
94	0
95	0
96	2
97	0
98	0
99	1
100	0
101	0
102	0
103	0
104	0

n	a(n)
0	1
1	3
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	2
28	0
29	0
30	1
31	0
32	0
33	2
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	1
58	0
59	0
60	0
61	0
62	0
63	1
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	0
72	1
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	0
93	2
94	0
95	0
96	2
97	0
98	0
99	1
100	0
101	0
102	0
103	0
104	0

n	a(n)
0	1
1	3
2	0
3	1
4	0
5	0
6	2
7	0
8	0
9	2
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	2
28	0
29	0
30	1
31	0
32	0
33	2
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	1
58	0
59	0
60	0
61	0
62	0
63	1
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	0
72	1
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	0
93	2
94	0
95	0
96	2
97	0
98	0
99	1
100	0
101	0
102	0
103	0
104	0