A231182 - cp's OEIS frontend

A231182 Coefficients for 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)). Coefficients for the zeroth and fourth powers.

n	a(n)
0	1
1	0
2	0
3	0
4	0
5	1
6	1
7	5
8	6
9	20
10	27
11	75
12	110
13	275
14	429
15	1001
16	1637
17	3639
18	6172
19	13243
20	23104
21	48280
22	86090
23	176341
24	319792
25	645150
26	1185305
27	2363596
28	4386331
29	8669142
30	16212913
31	31825005
32	59873834
33	116914020
34	220964744
35	429737220
36	815057639

[1, 0, 0, 0, 0, 1, 1, 5, 6, 20, 27, 75, 110, 275, 429, 1001, 1637, 3639, 6172, 13243, 23104, 48280, 86090, 176341, 319792, 645150, 1185305, 2363596, 4386331, 8669142, 16212913, 31825005, 59873834, 116914020, 220964744, 429737220, 815057639]

cp's OEIS Frontend

A231182 Coefficients for 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)). Coefficients for the zeroth and fourth powers.

Table of values

List of values