A175390 - cp's OEIS frontend

A175390 Number of irreducible binary polynomials Sum_{j=0..n} c(j)*x^j with c(1)=c(n-1)=1.

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	2
7	4
8	9
9	14
10	24
11	48
12	86
13	154
14	294
15	550
16	1017
17	1926
18	3654
19	6888
20	13092
21	24998
22	47658
23	91124
24	174822
25	335588
26	645120
27	1242822
28	2396970
29	4627850
30	8947756
31	17319148
32	33553881
33	65074406
34	126324420
35	245426486
36	477215270
37	928645186

[1, 1, 0, 1, 2, 2, 4, 9, 14, 24, 48, 86, 154, 294, 550, 1017, 1926, 3654, 6888, 13092, 24998, 47658, 91124, 174822, 335588, 645120, 1242822, 2396970, 4627850, 8947756, 17319148, 33553881, 65074406, 126324420, 245426486, 477215270, 928645186]

cp's OEIS Frontend

A175390 Number of irreducible binary polynomials Sum_{j=0..n} c(j)*x^j with c(1)=c(n-1)=1.

Table of values

List of values