Numbers k such that the decimal representation of k ends that of the sum of the first k cubes.

Terms

a(0) =0a(1) =1a(2) =5a(3) =25a(4) =76a(5) =376a(6) =500a(7) =625a(8) =876a(9) =1876a(10) =2500a(11) =5001a(12) =5625a(13) =9376a(14) =15625a(15) =25001a(16) =40625a(17) =50001a(18) =62500a(19) =65625a(20) =71876a(21) =75001a(22) =90625a(23) =109376a(24) =171876a(25) =265625a(26) =375001a(27) =390625a(28) =500001a(29) =765625