Numbers having three 1's in base 8.

Terms

a(0) =73a(1) =521a(2) =577a(3) =584a(4) =586a(5) =587a(6) =588a(7) =589a(8) =590a(9) =591a(10) =593a(11) =601a(12) =609a(13) =617a(14) =625a(15) =633a(16) =649a(17) =713a(18) =777a(19) =841a(20) =905a(21) =969a(22) =1097a(23) =1609a(24) =2121a(25) =2633a(26) =3145a(27) =3657a(28) =4105a(29) =4161