Look at the difference between each number and the next number.
24
30!
It is: 17+6 = 23
To determine the pattern in the series 17, 20, 14, -1, we can see that the difference between each consecutive number is not consistent. The sequence seems to be alternating between adding and subtracting numbers. Specifically, the pattern is +3, -6, -15. Following this pattern, the next number in the series would be obtained by subtracting 24 from -1, resulting in -25.
17
This series is of the function f(x) = x2+1, starting with x=0.The next number in the series is 26. The number after that is 37.
10 11 9 12 13 8 14 7 15 6 16 5 17
17 cause it is the next prime number
129 The numbers are prime (don't consider the prefix 1)
14
14