Numbers k such that k^9 starts with k itself (in base 10).

Terms

a(0) =0a(1) =1a(2) =10a(3) =75a(4) =100a(5) =750a(6) =1000a(7) =4217a(8) =7499a(9) =10000a(10) =100000a(11) =177828a(12) =1000000a(13) =10000000a(14) =74989421a(15) =100000000a(16) =1000000000a(17) =5623413252a(18) =10000000000a(19) =100000000000a(20) =177827941004a(21) =1000000000000