Numbers n such that string 4,6 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =42a(1) =123a(2) =204a(3) =285a(4) =366a(5) =386a(6) =447a(7) =528a(8) =609a(9) =690a(10) =771a(11) =852a(12) =933a(13) =1014a(14) =1095a(15) =1115a(16) =1176a(17) =1257a(18) =1338a(19) =1419a(20) =1500a(21) =1581a(22) =1662a(23) =1743a(24) =1824a(25) =1844a(26) =1905a(27) =1986a(28) =2067a(29) =2148