The odd members are ascending counting numbers. The even members are the sum of the previous two. The next two numbers are 6 and 21.
3 is the answer
21-28-36-45-55-66-74-87-101
Add 3 each time
is this question number 10? 4n - 1 creates the pattern 3, 7, 11, 15, 19, etc.
Each successive number is the sum of the previous number times 2, plus 1.
The rule is 5, 10, 15 and so the next number will be 20+31 = 51
3 is the answer
21-28-36-45-55-66-74-87-101
Add 3 each time
multiplication pattern
One possible rule is: Un = (219n5 - 3755n4 + 24075n3 - 70645n2 + 92166n - 36960)/120 for n = 1, 2, 3, etc
Start at 1. Multiply by 3. Subtract 1. Multiply by 3. Subtract 1. Repeat this pattern.
t(n) = 3(n-1) + 1, for n = 1, 2, 3, etc
is this question number 10? 4n - 1 creates the pattern 3, 7, 11, 15, 19, etc.
The Girl's Guide to Depravity - 2012 Rule 72 The Unavailable Rule 1-10 was released on: USA: 30 March 2012 Japan: 15 September 2012
Ni = N(i-1) - 5
The gaps are 5, 10, 15, 20, ..... The rule becomes add 5(n-1) to the previous number So that the second number is found by adding 5 times (2-1) to 1 = 5+1 = 6 and the third number is found by adding 5 times (3-1) to 6 = 10+6 = 16 and the fourth number is found by adding 5 times (4-1) to 16 = 15+15 = 31 and so on....