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| View Original: | Square pyramidal number.svg (981x477) | |||
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| Keywords: Square pyramidal number.svg 1+4+9+16 30 a square pyramidal number en wikipedia 2007-02-10 David Eppstein wikipedia en David Eppstein original upload log page en wikipedia Square_pyramidal_number svg 2007-02-10 23 28 David Eppstein 981×477×0 8841 bytes <nowiki>Replace with fixed gradients</nowiki> 2007-02-10 22 59 David Eppstein 981×477×0 34905 bytes <nowiki>1+4+9+16 30 a square pyramidal number </nowiki> Pyramids of balls Figurate numbers Files by User David Eppstein from en wikipedia | ||||
