4 5 6 7 8 9 10 11 12 13....
It is increasing by one between each number
(This could be wrong......It could be a trick!)
Wiki User
∙ 13y ago1+1=2 : 1+2=3 : 2+3=5 : 3+5=8Therefore the next number is 8
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21
12110 0r 1210
3,5,8,13 is followed by 21. 1,1,2,3,5,8,13,21,34,55,... is the Fibonacci series or Fibonacci sequence where the next number in the sequence is the sum of the last two numbers (1+1=2, 1+2=3, 2+3=5, etc.)
1+1=2 : 1+2=3 : 2+3=5 : 3+5=8Therefore the next number is 8
The next number is 4, followed by -2
8 -1 then +3
The next number in the sequence is 18. It's +1, +2, +3, +4, ....
4
You add two then take one. 1+2=3, 3-1=2, 2+2=4, 4-1=3. The next number is 5.
Zero
Sequence is +4 - 3 + 5 - 2 + 6 - 1 (+1 - 1)2 6 3 8 6 12 next number 11
13, 21 - it is the Fibonacci sequence
12110 0r 1210
21
The next number in the sequence is 15 - the sequence goes x2, +2, -1