i want a formula for counting triangles in a big triangle for example: level 1=1 level 2=5 level 3=13 and son on>>> plz help me
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thank u very much for quick reply
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Please check this When is odd , the formula is When is even , it is Or generally the number of triangles we can count is Or
Last edited by simplependulum; Jul 1st 2010 at 08:43 PM.
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