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%I #8 Oct 24 2023 20:38:42
%S 0,1,0,3,4,5,6,7,8,9,10,11,1,13,14,15,16,17,18,19,0,1,0,3,4,5,6,7,8,9,
%T 30,31,3,33,34,35,36,37,38,39,40,41,4,43,44,45,46,47,48,49,50,51,5,53,
%U 54,55,56,57,58,59,60,61,6,63,64,65,66,67,68,69,70,71,7,73,74
%N Omit 2's from n.
%t Table[FromDigits[DeleteCases[IntegerDigits[n],2]],{n,0,80}] (* _Harvey P. Dale_, Feb 12 2022 *)
%K nonn,base
%O 0,4
%A _N. J. A. Sloane_
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