Nialpdromes: digits in base 8 are in nonincreasing order.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =16a(11) =17a(12) =18a(13) =24a(14) =25a(15) =26a(16) =27a(17) =32a(18) =33a(19) =34a(20) =35a(21) =36a(22) =40a(23) =41a(24) =42a(25) =43a(26) =44a(27) =45a(28) =48a(29) =49