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#338064 - Tue Dec 26 2006 12:57 PM Difficult Pattern
chess19 Offline
Learning the ropes...

Registered: Tue Dec 26 2006
Posts: 2
Loc: Oak Lawn Illinois USA       
What's the next in the series

1, 11, 21, 1211, 3112, 132112, __________

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#338065 - Tue Dec 26 2006 09:50 PM Re: Difficult Pattern
bethfay Offline
Forum Adept

Registered: Sat Aug 26 2006
Posts: 196
Loc: St Louis Missouri USA
Next number is 311322 (or three 1's, one 3, two 2's - the numbers in the previous number).

Total sequence is:
1 - START
11 = one 1
21 = two 1's
1211 = one 2, one 1
3112 = three 1's, one 2
132112 = one 3, two 1's, one 2
soooo...
311322 = three 1's, one 3, two 2's

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