There are many possible answers.
One is the cubic function:
Un = (n3 - 9n2 + 44n - 6)/6 for n = 1, 2, 3, ...
You see the differences between the integers is 10,9,8.... so your difference for the next integer is 7
5-30-6-42-7-56-8-72
If you mean: 2 5 11 23 47 then they are increasing by 3 6 12 24
first you add 1 by 5 and get 6 then .add 6 by 2 and get 8 .and add 8 by 3 and get 11.add 11 by 4 get 15.add 15 by 5 get 20 its simple just keep adding each number by 1,2,3,4,5 and if the pattern continues keep going
More info would be nice but if you mean what is the fraction that indicates 12 of 15 it would be 4/5 ? of 15 as 4/5 * 15 = 60/5 or 12 & 5/5 * 15 = 75/5 or 15
multiplication pattern
The rule is 5, 10, 15 and so the next number will be 20+31 = 51
The pattern rule is: 4 5 6 7 8 and so the next number will be 33+9 = 42
You see the differences between the integers is 10,9,8.... so your difference for the next integer is 7
5-30-6-42-7-56-8-72
255 ÷ 1 = 255 255 ÷ 3 = 85 255 ÷ 5 = 51 255 ÷ 15 = 17 255 ÷ 17 = 15 255 ÷ 51 = 5 255 ÷ 85 = 3 255 ÷ 255 = 1
It is: 3 6 12 24 48 .... double up each time
If you mean: 2 5 11 23 47 then they are increasing by 3 6 12 24
first you add 1 by 5 and get 6 then .add 6 by 2 and get 8 .and add 8 by 3 and get 11.add 11 by 4 get 15.add 15 by 5 get 20 its simple just keep adding each number by 1,2,3,4,5 and if the pattern continues keep going
(12-15)/5 = -3/5
The rule is 10
More info would be nice but if you mean what is the fraction that indicates 12 of 15 it would be 4/5 ? of 15 as 4/5 * 15 = 60/5 or 12 & 5/5 * 15 = 75/5 or 15