314271domain: NAppears in sequencesa(n) = floor((4/3)^n).at n=44A064628Values of floor((4/3)^n) that are composite.at n=31A070761Nearest integer to (4/3)^n.at n=44A309212a(n) = Sum_{k=0..floor(n/3)} (n-2*k)!/(n-3*k)!.at n=22A357532