368927domain: NAppears in sequencesa(n) = n^5 - n^3 - n^2.at n=13A133070p^5 - p^3 - p^2. Exponents are the prime numbers in decreasing order and p is the n-th prime.at n=5A135179a(n) = 1/15*(128*n^5 + 320*n^4 + 80*n^3 - 200*n^2 + 92*n - 15).at n=7A212670