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Any number can be the next number. It is easy to find a rule based on a polynomial of order 6 such that the first six numbers are as listed in the question followed by the chosen next number. There are also non-polynomial solutions. Short of reading the mind of the person who posed the question, there is no way of determining which of the infinitely many solutions is the "correct" one.
The simplest rule, based on a polynomial of order 5, is
T(n) = (23n^5 - 335n^4 + 1715n^3 - 3685n^2 + 3122n + 120)/120 where n = 1, 2, 3, ...
Accordingly, the next number is T(7) = 99.
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What number is next in this sequence 10 4 3 11 15?
14
4 The next number in the series 9 4 10 5 11 6 is?
12,7,13,8 etc
What is the next number in this sequence9 4 10 5 11 6?
+6 -5 is the equation. 12 is the answer.
What number comes next 8 6 9 5 10 4 11?
the patter is -2 +3 -4 +5 -6 +7 so it goes 8 6 9 5 10 4 11 3 12 2 11 1 10
What is the next number in the following series 16 - 11 - 13 - 8 - 10 - 5 - 7?
The pattern is - 5 then +2. 2 and 4 are the next numbers in the series.
