Numbers k such that k^6 starts with k itself (in base 10).

Terms

a(0) =0a(1) =1a(2) =4a(3) =10a(4) =16a(5) =40a(6) =100a(7) =631a(8) =1000a(9) =1585a(10) =2512a(11) =10000a(12) =15849a(13) =25119a(14) =100000a(15) =1000000a(16) =10000000a(17) =15848932a(18) =100000000a(19) =1000000000a(20) =6309573445a(21) =10000000000a(22) =100000000000a(23) =251188643151a(24) =1000000000000