Positive numbers k such that k and 3*k are anagrams in base 7 (written in base 7).

Terms

a(0) =15a(1) =150a(2) =165a(3) =1023a(4) =1254a(5) =1500a(6) =1515a(7) =1650a(8) =1665a(9) =2046a(10) =10023a(11) =10230a(12) =10233a(13) =10323a(14) =12405a(15) =12534a(16) =12540a(17) =12654a(18) =13254a(19) =15000a(20) =15015a(21) =15150a(22) =15165a(23) =15426a(24) =16500a(25) =16515a(26) =16650a(27) =16665a(28) =20046a(29) =20460