Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
6
6
5
k
=
0
i
n
t
2
0
0
0
-
3
*
k
-
1
2
Math Input
Natural Language
Math Input
