Number of zero trace primitive elements in Galois field GF(2^n).

Terms

a(0) =0a(1) =0a(2) =3a(3) =4a(4) =15a(5) =12a(6) =63a(7) =72a(8) =207a(9) =290a(10) =979a(11) =864a(12) =4095a(13) =5250a(14) =13485a(15) =16496a(16) =65535a(17) =69948a(18) =262143a(19) =240000a(20) =888888a(21) =1319758a(22) =4106167a(23) =3318144a(24) =16199225a(25) =22355866a(26) =56730861a(27) =66385676a(28) =266917769a(29) =267331800