Given any number it is easy to find a rule based on a polynomial of order 5 such that the first five numbers are as listed in the question and the sixth is the given number. That is, it is easy to find a rule so that any number can be the "next" in the sequence.
However, the simplest polynomial of order 4 is:
Un = (5n4 - 54n3 + 217n2 - 312n + 240)/12 for n = 1, 2, 3, ...
and, accordingly, U6 = 83.
17
30!
17 cause it is the next prime number
17, it's the sequence of primes.
This is a list of prime numbers, the next ones are 17, 19, 23, 29
17
24
30!
14
14
17 cause it is the next prime number
17
you are adding 2, so its 17
17, it's the sequence of primes.
This is a list of prime numbers, the next ones are 17, 19, 23, 29
The series is a sequence of three numbers, the second number is 3 greater than the first, and the third number is 5 greater than the second. (or 8 greater than the first) 20 + 3 = 23 : 23 + 5 = 28 14 + 3 = 17 : 17 + 5 = 22 11 + 3 = 14........is therefore the next number in the sequence.
the numbers are only dividable by 1 or themselves, the so called, 'prime numbers', so the next one would be 17.