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View Full Version : Next number in series:

coolguy123
Jul 1, 2008, 10:29 PM
1, 2, 6, 21, 88, __ ?
myglo
Jul 2, 2008, 04:51 AM
its 445 :-


1
2=(1+1)1
6=(2+1)2
21=(6+1)3
88=(21+1)4
So 445=(88+1)5
& 2676=(445+1)6