Let a sequence( an ) defined by an=1,3,6,12,33,51,...and n=1,2,3,.... Find formula an?

Question:Let a sequence( an ) defined by an=1,3,6,12,33,51,...and n=1,2,3,.... Find formula an?

Posted: yangtheary 240 Product: Maple

February 06 2012

Let a sequence( a_n ) defined by a_n=1,3,6,12,33,51,...and n=1,2,3,.... Find formula a_n?

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