36044domain: NAppears in sequencesa(1) = 7; a(n+1) = a(n)-th composite.at n=42A025011a(n) = a(n-1) + 16*a(n-3) - 16*a(n-4), where a(0) = 1, a(1) = 4, a(2) = 8, a(3) = 12, a(4) = 76.at n=11A297555