A231184 - cp's OEIS frontend

A231184 Coefficients of the nonnegative powers of rho(11) = 2*cos(Pi/11) when written in the power basis of the degree 5 number field Q(rho(11)). Negative of the coefficients of the second power.

n	a(n)
0	-1
1	0
2	0
3	3
4	6
5	17
6	32
7	73
8	135
9	286
10	528
11	1080
12	2002
13	4015
14	7485
15	14827
16	27796
17	54606
18	102869
19	200909
20	380006
21	739013
22	1402309
23	2718485
24	5171573
25	10001553
26	19064476
27	36802823
28	70259834
29	135444612
30	258883604
31	498538557
32	953762458

[-1, 0, 0, 3, 6, 17, 32, 73, 135, 286, 528, 1080, 2002, 4015, 7485, 14827, 27796, 54606, 102869, 200909, 380006, 739013, 1402309, 2718485, 5171573, 10001553, 19064476, 36802823, 70259834, 135444612, 258883604, 498538557, 953762458]

cp's OEIS Frontend

A231184 Coefficients of the nonnegative powers of rho(11) = 2*cos(Pi/11) when written in the power basis of the degree 5 number field Q(rho(11)). Negative of the coefficients of the second power.

Table of values

List of values