Games Guess the formula

[Bianka]

Warning math game (I like math and puzzles okay?)

Write a sequence of numbers then try to guess what's the rule they follow

Example: 1 2 3 4 5
Rule: A(n)=n (or "the previous number +1")

I start:
1 3 6 11 18 29

 

[sserafim]

1 3 6 11 18 29
Rule: Add successive prime numbers to each number in the sequence

0 1 1 2 3 5

 

[Bianka]

Rule: Fibonacci sequel
A(n1) = 0; A(n2) = 1; A(n) = A(n-1) + A(n-2) {n>2}

0 1 -2 7 -20 61 -182