Position where 10^n-1 occurs in the Kaprekar sequence A006886.

Terms

a(0) =2a(1) =5a(2) =8a(3) =17a(4) =24a(5) =54a(6) =62a(7) =91a(8) =102a(9) =132a(10) =149a(11) =264a(12) =281a(13) =316a(14) =385a(15) =503a(16) =527a(17) =762a(18) =790a(19) =1035a(20) =1154a(21) =1278a(22) =1378a(23) =2304a(24) =2374a(25) =2498a(26) =2575a(27) =3122a(28) =3910a(29) =11330