mathURL

http://mathurl.com/yz3mkkf
<img src="http://mathurl.com/yz3mkkf.png" />

$f(n)=\dfrac{\left(1+\sqrt{5}\right)^{n}\cdot\left(5+3\cdot\sqrt{5}\right)+\left(1-\sqrt{5}\right)^{n}\cdot\left(5-3\cdot\sqrt{5}\right)}{10\cdot2^{n}}$

help & about · blog · mathurl at mathurl dot com · by justin kao