Numbers k such that the string 7,6 occurs in the base 9 representation of k but not of k-1.

Terms

a(0) =69a(1) =150a(2) =231a(3) =312a(4) =393a(5) =474a(6) =555a(7) =621a(8) =636a(9) =717a(10) =798a(11) =879a(12) =960a(13) =1041a(14) =1122a(15) =1203a(16) =1284a(17) =1350a(18) =1365a(19) =1446a(20) =1527a(21) =1608a(22) =1689a(23) =1770a(24) =1851a(25) =1932a(26) =2013a(27) =2079a(28) =2094a(29) =2175