Nearest integer to n^5/25.

Terms

a(0) =0a(1) =1a(2) =10a(3) =41a(4) =125a(5) =311a(6) =672a(7) =1311a(8) =2362a(9) =4000a(10) =6442a(11) =9953a(12) =14852a(13) =21513a(14) =30375a(15) =41943a(16) =56794a(17) =75583a(18) =99044a(19) =128000a(20) =163364a(21) =206145a(22) =257454a(23) =318505a(24) =390625a(25) =475255a(26) =573956a(27) =688415a(28) =820446a(29) =972000