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

Terms

a(0) =32a(1) =16807a(2) =248832a(3) =1419857a(4) =5153632a(5) =14348907a(6) =33554432a(7) =69343957a(8) =130691232a(9) =229345007a(10) =380204032a(11) =601692057a(12) =916132832a(13) =1350125107a(14) =1934917632a(15) =2706784157a(16) =3707398432a(17) =4984209207a(18) =6590815232a(19) =8587340257a(20) =11040808032a(21) =14025517307a(22) =17623416832a(23) =21924480357a(24) =27027081632a(25) =33038369407