a(n) = (10*n + 2)^5.

Terms

a(0) =32a(1) =248832a(2) =5153632a(3) =33554432a(4) =130691232a(5) =380204032a(6) =916132832a(7) =1934917632a(8) =3707398432a(9) =6590815232a(10) =11040808032a(11) =17623416832a(12) =27027081632a(13) =40074642432a(14) =57735339232a(15) =81136812032a(16) =111577100832