I believe we are.

Also, it got so quiet here suddenly :o

[sub]I'm almost afraid to break the silence[/sub]

[hider=Random Math] A[sub]n[/sub]=16([sup]-1[/sup]/[sub]2[/sub])[sup]n[/sup]+11
A[sub]20[/sub]= 11+[sup]1[/sup]/[sub]65536[/sub][/hider]