// output of ./demo/gf2n/lfsr-trace0-generators-demo.cc: // Description: //% Count primitive elements with trace==0 in GF(2^n). //% Cf. OEIS sequences A192211 and A152049. //% Fast method using class mersenne_coprime. arg 1: 8 == n [Bits in word (n>=2)] default=8 ct=72