What is the next number in the sequence: 1, 4, 9, 16, ___?
What comes next in the series: 1, 3, 6, 10, ___?
Find the next number in the series: 2, 6, 12, 20, ___.
Find the next number in the sequence: 12, 15, 19, 24, ___.
Complete the series: 3, 7, 15, 31, ___.
Find the missing number: 11, 14, 19, 26, ___.
Find the missing number in the sequence: 13, 16, 21, 28, ___.
Continue the series: 2, 8, 18, 32, ___.
What number follows the pattern: 3, 12, 27, 48, ___?