The series provided is the Fibonacci sequence, where each number is the sum of the two preceding ones. After 1, 1, 2, 3, 5, 8, and 13, the next number is 21, as it is the sum of 8 and 13. Thus, the next number in the series is 21.
The next number is -21
This is the series of square numbers, (16= 4*4). The next number is 5*5=25.
21
The next number is 25 but there are the sequence is infinite so there can be no end to the sequence.
The series appears to follow a pattern based on alternating additions and subtractions. Starting with 1, adding 1 gives 2; then subtracting 2 gives 0; adding 3 results in 3; and subtracting 4 gives -1. Following this pattern, the next operation would be adding 5, leading to the next number being 4. Thus, the next number in the series should be 4.
The next number is -21
the answer will be 21
10
225
4
This is the series of square numbers, (16= 4*4). The next number is 5*5=25.
21
21
21
21.
No, sadly not. Percy's series has come to an end.
December 11,2011