5-1 = 4 8-4 = 18 14-9 = 343 15-5 = 605 23-11 = ?
Find the rule that makes this work!
fib(5)-fib(1) = 4 fib(8)-fib(4) = 18, and so on.
So the answer is 28568.
blackjack
flooble's webmaster puzzle