A231185 - cp's OEIS frontend

A231185 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)). Coefficients of the third power.

n	a(n)
0	1
1	0
2	4
3	1
4	14
5	7
6	48
7	35
8	165
9	154
10	572
11	636
12	2002
13	2533
14	7071
15	9861
16	25176
17	37810
18	90251
19	143451
20	325358
21	540155
22	1178291
23	2022735
24	4282811
25	7543771
26	15612092
27	28048829
28	57040186
29	104050724
30	208772476
31	385320419
32	765186422
33	1425038684

[1, 0, 4, 1, 14, 7, 48, 35, 165, 154, 572, 636, 2002, 2533, 7071, 9861, 25176, 37810, 90251, 143451, 325358, 540155, 1178291, 2022735, 4282811, 7543771, 15612092, 28048829, 57040186, 104050724, 208772476, 385320419, 765186422, 1425038684]

cp's OEIS Frontend

A231185 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)). Coefficients of the third power.

Table of values

List of values