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There are infinitely polynomials of order 5 that will give these as the first five numbers and any one of these could be "the" rule. 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 4 is
T(n) = (n^4 - 12n^3 + 50n^2 - 78n + 42)/3 for n = 1, 2, 3, ...
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What is the pattern rule for 1 1 2 3 5 and the next number?
8. Each number is the sum of the previous two.
What is the rule of the pattern 1 2 5 6 9?
add 4 to every other number 1(+4)=5, 5(+4)=9 2(+4)=6
What is the pattern rule for this pattern 1-1-2-3-5-8-13?
Add the previous 2 numbers to get the next number.
What is the pattern rule for 3-4-5-6?
3 4 5 6 The next number is 1 plus the previous number So the pattern rule is the next number is n + 1
What is the divisibility rule for 3 For 5?
for 3: count all number if divisable by 3 (123= 1+2+3= 6, 3+3=6) for 5:end number is 5 or 0
