Powers of 8 written backwards and sorted.

Terms

a(0) =1a(1) =8a(2) =46a(3) =215a(4) =6904a(5) =86723a(6) =441262a(7) =2517902a(8) =61277761a(9) =827712431a(10) =2954399858a(11) =4281473701a(12) =63767491786a(13) =888318557945