Sunday

April 20, 2014

April 20, 2014

Posted by **lily** on Thursday, May 3, 2007 at 8:05pm.

-4,8,-12,16

if the last number is negative, multiply by -1 then add 4

if the last number is positive, add 4, then multiply by -1

or how about

term

oops that last line should have said:

term

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