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.
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.
Terms
- a(0) =-1a(1) =0a(2) =0a(3) =3a(4) =6a(5) =17a(6) =32a(7) =73a(8) =135a(9) =286a(10) =528a(11) =1080a(12) =2002a(13) =4015a(14) =7485a(15) =14827a(16) =27796a(17) =54606a(18) =102869a(19) =200909a(20) =380006a(21) =739013a(22) =1402309a(23) =2718485a(24) =5171573a(25) =10001553a(26) =19064476a(27) =36802823a(28) =70259834a(29) =135444612
External references
- oeis: A231184