a(n) = (11*n + 9)^5.

Terms

a(0) =59049a(1) =3200000a(2) =28629151a(3) =130691232a(4) =418195493a(5) =1073741824a(6) =2373046875a(7) =4704270176a(8) =8587340257a(9) =14693280768a(10) =23863536599a(11) =37129300000a(12) =55730836701a(13) =81136812032a(14) =115063617043a(15) =159494694624