a(n) = 2*(n^8 + 224*n^4 + 256)^2.A190780a(n) = 2*(n^8 + 224*n^4 + 256)^2.Terms a(0) =131072a(1) =462722a(2) =33554432a(3) =1246103042a(4) =30324948992a(5) =563669272322External referencesoeis: A190780