A165920 - cp's OEIS frontend

A165920 Number of 2-elements orbits of S3 action on irreducible polynomials of degree 3n, n > 0, over GF(2).

n	a(n)
1	1
2	0
3	1
4	1
5	2
6	3
7	6
8	10
9	19
10	33
11	62
12	112
13	210
14	387
15	728
16	1360
17	2570
18	4845
19	9198
20	17459
21	33288
22	63519
23	121574
24	232960
25	447392
26	860265
27	1657009
28	3195465
29	6170930
30	11930100
31	23091222
32	44738560
33	86767016
34	168428805
35	327235602
36	636289024
37	1238188770
38	2411205111
39	4698767640
40	9162588158
41	17878237850

[1, 0, 1, 1, 2, 3, 6, 10, 19, 33, 62, 112, 210, 387, 728, 1360, 2570, 4845, 9198, 17459, 33288, 63519, 121574, 232960, 447392, 860265, 1657009, 3195465, 6170930, 11930100, 23091222, 44738560, 86767016, 168428805, 327235602, 636289024, 1238188770, 2411205111, 4698767640, 9162588158, 17878237850]

cp's OEIS Frontend

A165920 Number of 2-elements orbits of S3 action on irreducible polynomials of degree 3n, n > 0, over GF(2).

Table of values

List of values