A247649 - cp's OEIS frontend

A247649 Number of terms in expansion of f^n mod 2, where f = 1/x^2 + 1/x + 1 + x + x^2 mod 2.

n	a(n)
0	1
1	5
2	5
3	7
4	5
5	17
6	7
7	19
8	5
9	25
10	17
11	19
12	7
13	31
14	19
15	25
16	5
17	25
18	25
19	35
20	17
21	61
22	19
23	71
24	7
25	35
26	31
27	41
28	19
29	71
30	25
31	77
32	5
33	25
34	25
35	35
36	25
37	85
38	35
39	95
40	17
41	85
42	61
43	71
44	19
45	91
46	71
47	77
48	7
49	35
50	35
51	49
52	31
53	107
54	41
55	121
56	19
57	95
58	71
59	85
60	25
61	113
62	77
63	103

[1, 5, 5, 7, 5, 17, 7, 19, 5, 25, 17, 19, 7, 31, 19, 25, 5, 25, 25, 35, 17, 61, 19, 71, 7, 35, 31, 41, 19, 71, 25, 77, 5, 25, 25, 35, 25, 85, 35, 95, 17, 85, 61, 71, 19, 91, 71, 77, 7, 35, 35, 49, 31, 107, 41, 121, 19, 95, 71, 85, 25, 113, 77, 103]

cp's OEIS Frontend

A247649 Number of terms in expansion of f^n mod 2, where f = 1/x^2 + 1/x + 1 + x + x^2 mod 2.

Table of values

List of values

n	a(n)
0	1
1	5
2	5
3	7
4	5
5	17
6	7
7	19
8	5
9	25
10	17
11	19
12	7
13	31
14	19
15	25
16	5
17	25
18	25
19	35
20	17
21	61
22	19
23	71
24	7
25	35
26	31
27	41
28	19
29	71
30	25
31	77
32	5
33	25
34	25
35	35
36	25
37	85
38	35
39	95
40	17
41	85
42	61
43	71
44	19
45	91
46	71
47	77
48	7
49	35
50	35
51	49
52	31
53	107
54	41
55	121
56	19
57	95
58	71
59	85
60	25
61	113
62	77
63	103

n	a(n)
0	1
1	5
2	5
3	7
4	5
5	17
6	7
7	19
8	5
9	25
10	17
11	19
12	7
13	31
14	19
15	25
16	5
17	25
18	25
19	35
20	17
21	61
22	19
23	71
24	7
25	35
26	31
27	41
28	19
29	71
30	25
31	77
32	5
33	25
34	25
35	35
36	25
37	85
38	35
39	95
40	17
41	85
42	61
43	71
44	19
45	91
46	71
47	77
48	7
49	35
50	35
51	49
52	31
53	107
54	41
55	121
56	19
57	95
58	71
59	85
60	25
61	113
62	77
63	103

n	a(n)
0	1
1	5
2	5
3	7
4	5
5	17
6	7
7	19
8	5
9	25
10	17
11	19
12	7
13	31
14	19
15	25
16	5
17	25
18	25
19	35
20	17
21	61
22	19
23	71
24	7
25	35
26	31
27	41
28	19
29	71
30	25
31	77
32	5
33	25
34	25
35	35
36	25
37	85
38	35
39	95
40	17
41	85
42	61
43	71
44	19
45	91
46	71
47	77
48	7
49	35
50	35
51	49
52	31
53	107
54	41
55	121
56	19
57	95
58	71
59	85
60	25
61	113
62	77
63	103