a(n) = 2^(n^2) + 3^n.A120767a(n) = 2^(n^2) + 3^n.Terms a(0) =2a(1) =5a(2) =25a(3) =539a(4) =65617a(5) =33554675a(6) =68719477465External referencesoeis: A120767