Smallest multiple of A047201(n) (i.e., numbers not divisible by 5) with only digits 6 and 7.

Terms

a(0) =67a(1) =76a(2) =6777a(3) =76a(4) =7776a(5) =6776a(6) =776a(7) =6777a(8) =6677a(9) =7776a(10) =676a(11) =6776a(12) =7776a(13) =6766a(14) =7776a(15) =76a(16) =67767a(17) =6776a(18) =667a(19) =7776a(20) =676a(21) =6777a(22) =6776a(23) =667a(24) =67766a(25) =7776a(26) =66777777a(27) =6766a(28) =7776a(29) =666777