SOLUTION: 28,35,?,77 number in place of question mark

Question 927690: 28,35,?,77 number in place of question mark
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
28, 35, , 77

so the new question is 4, 5, ?? , 11.
I decided that the person who invented the problem thought of
4, 5, 7, 11
because
or ,
or , and
or ,
where you get the next term in the sequence by adding the next power of 2.
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