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%I #13 Mar 03 2023 13:48:20
%S 0,1,2,4,8,10,16,20,21,32,40,50,80,100,150,160,210,320,338,400,450,
%T 800,882,1014,1040,1554,1600,4662,5350,8636,10000,13986,16050,25908,
%U 28392,38766,48150,55672,84250,97062,126802,167016,187824,339188,380406,449400,501048
%N When expressed in base 3 and then interpreted in base 7, is a multiple of the original number.
%e 8 in base 3 is 22, which interpreted in base 7 is 16 = 2*8.
%t Join[{0},Select[Range[100000],Divisible[FromDigits[IntegerDigits[#,3],7],#]&]] (* _Harvey P. Dale_, Jul 06 2019 *)
%K base,nonn
%O 1,3
%A _Erich Friedman_, Jul 21 2001
%E Offset changed to 1 by _Georg Fischer_, Mar 03 2023
%E More terms from _Amiram Eldar_, Mar 03 2023