a(n) = (11*n+1)^5.

Terms

a(0) =1a(1) =248832a(2) =6436343a(3) =45435424a(4) =184528125a(5) =550731776a(6) =1350125107a(7) =2887174368a(8) =5584059449a(9) =10000000000a(10) =16850581551a(11) =27027081632a(12) =41615795893a(13) =61917364224a(14) =89466096875a(15) =126049300576a(16) =173726604657