a(n) = (2^n - 1)^5 - 2.A098879a(n) = (2^n - 1)^5 - 2.Terms a(0) =-2a(1) =-1a(2) =241a(3) =16805a(4) =759373a(5) =28629149a(6) =992436541a(7) =33038369405External referencesoeis: A098879