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Question: How to remove every second number from a list

Question:How to remove every second number from a list

SeyiOshin 15 Maple
homework list
July 04 2019
2

"From the list of positive integers 1; 2; 3; 4; : : :, remove every second number, leaving
1; 3; 5; 7; 9; : : : Since 3 is the flrst surviving number above 2 that has not been used
as the \killer", we remove every 3rd number from the remaining numbers, yielding
1; 3; 7; 9; 13; 15; 19; 21; : : :"

 I have tried using this:

A:= proc(n::integer)::list;
   local B,C,j;
   B:={seq(i,i=1..n)};
   for j from 2 by 2 to n do
       C:= {B minus {B[j]}};
   end do;
 end proc;

But I'm not getting the desired result.
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