What is the next number in sequence 6, 8, 11, 16, 17, 13 ?
What is the next number in the sequence? 15, 19, 31, 15, 11, (?)
מהו המספר הבא ברצף 6, 8, 11, 16, 17, 13?
מהו המספר הבא ברצף? 15, 19, 31, 15, 11, (?)