According to Wittgenstein's Finite Rule Paradox every finite sequence of numbers can be a described in infinitely many ways and so can be continued any of these ways - some simple, some complicated but all equally valid. Conversely, it is possible to find a rule such that any number of your choice can be the next one.
One possible solution is 85, based on the cubic polynomial:Un = (13n3 - 96n2 + 218n - 60)/3.
The next number in the sequence is 27.
The next number in the sequence is 27. To get the next number, double the number and add one. Except for the second number, all the numbers in the sequence follow this rule.
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
243
343.
27
27
27
39
The next number in the sequence is 27.
The next number in the sequence is 27. To get the next number, double the number and add one. Except for the second number, all the numbers in the sequence follow this rule.
The sequence is generated using cubes, or n^3. The next number in the sequence will be 4^3, or 256.
It is: 34
125 (the sequence is successive numbers cubed)
It is 27.
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
243