Numbers k such that every base-7 digit of k is a base-9 digit of k.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =31a(7) =99a(8) =106a(9) =107a(10) =195a(11) =198a(12) =248a(13) =257a(14) =284a(15) =297a(16) =321a(17) =498a(18) =514a(19) =749a(20) =750a(21) =751a(22) =758a(23) =767a(24) =785a(25) =936a(26) =939a(27) =940a(28) =943a(29) =950