2147614720domain: NAppears in sequencesa(n) = 4a(n-1) - 6a(n-2) + 4a(n-3), n > 3; a(0) = 3, a(1) = 2, a(2) = a(3) = 0.at n=31A133209a(n) = n^9*(n^7 + 1)/2.at n=4A170789