Numbers whose cube is palindromic in base 7.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =8a(5) =16a(6) =50a(7) =100a(8) =200a(9) =344a(10) =688a(11) =1376a(12) =2402a(13) =4804a(14) =9608a(15) =16808a(16) =33616a(17) =67232a(18) =117650a(19) =235300a(20) =470600a(21) =823544a(22) =1647088a(23) =3294176a(24) =5764802a(25) =11529604a(26) =23059208a(27) =40353608a(28) =80707216a(29) =161414432