22 22 30 13 13 16 16 28 28 11 ?
series/series.23
Problem
22 22 30 13 13 16 16 28 28 11 ?
Show solution
ANSWER: 15
The birthdays of the Presidents of the United States.
series/series.23
22 22 30 13 13 16 16 28 28 11 ?
ANSWER: 15
The birthdays of the Presidents of the United States.