A050029(2^n + 1).A096119A050029(2^n + 1).Terms a(0) =1a(1) =2a(2) =4a(3) =11a(4) =48a(5) =362a(6) =5030a(7) =133924a(8) =6977521a(9) =719087781a(10) =147394353130External referencesoeis: A096119