i need to solve for n.

1 / (n+1)(2^(n+1)) < .0001

(n+1)(2^(n+1)) > 10,000

(n+1)(2(2^n)) > 10,000

(n+1)(2^n) > 5,000

from there i am stuck. i tried using logarithms and it didn't help either. is there any way to solve this by hand or do i need to use an equation solver program for this?