Revision as of 06:31, 22 May 2013 edit Ancora Luciano (talk \| contribs) 318 edits →Geometrical derivation of the formula ← Previous edit		Revision as of 06:31, 22 May 2013 edit undo Ancora Luciano (talk \| contribs) 318 edits →Geometrical derivation of the formula Next edit →
Line 89: P<sub>n</sub> = (2n<sup>3</sup>+3n<sup>2</sup>+n)/6 Returning to the introduction to this talk page, seems that this geometric derivation is a little more ''direct'' than the algebraic presented in the article. --[[User:Ancora Luciano\|Ancora Luciano]] ([[User talk:Ancora Luciano\|talk]]) 06:15, 22 May 2013 (UTC)

Talk:Square pyramidal number: Difference between revisions