Find the rules 2, 5, 14, 38 Find the next number I thought it was 104, but two to five was wrong I didn't work out the others. Please know the writing rules! What's a on the first floor

Find the rules 2, 5, 14, 38 Find the next number I thought it was 104, but two to five was wrong I didn't work out the others. Please know the writing rules! What's a on the first floor

I think your understanding (104) is right
An=2*[A(n-1)+A(n-2)]

Law of sequence, 2,5,14,74
What's the next number?

14=2*5+4
74=5*14+4
Next = 14 * 74 + 4

On finding the law of sequence
The second power of 3 - the second power of 1 = 8 * 1, the second power of 5 - the second power of 3 = 8 * 2, the second power of 7 - the second power of 5 = 8 + 3 What is the law. The second power of 2003 - the second power of 2001=

(n+2)^2 -n^2 =8*(n+1)/2
2003^2 -2001^2 =8*1001