a(n) = n^(n+2) + (n+2)^n.A051489a(n) = n^(n+2) + (n+2)^n.Terms a(0) =1a(1) =4a(2) =32a(3) =368a(4) =5392a(5) =94932a(6) =1941760a(7) =45136576a(8) =1173741824a(9) =33739007300External referencesoeis: A051489