a(n) = 2^(5*n + 2).A013823a(n) = 2^(5*n + 2).Terms a(0) =4a(1) =128a(2) =4096a(3) =131072a(4) =4194304a(5) =134217728a(6) =4294967296a(7) =137438953472External referencesoeis: A013823