146542domain: NAppears in sequencesa(n) = floor(sqrt(5*2^n)).at n=32A221942Greatest integer k such that k/2^n < sqrt(5).at n=16A293331a(n) is the maximal coefficient of (1 + x^a(1)) * (1 + x^a(1) + x^a(2)) * ... * (1 + x^a(1) + x^a(2) + ... + x^a(n-1)).at n=11A369791