Home›Browse›squared triangular number🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsРусскийالعربية日本語EntityQ2197859· pop 14· linked from 229 articlessquared triangular numberSign in to savethe sum of the first n cubes, which equals the square of the nth triangular numberAvailable in 14 languagesEspañolFrançaisDeutsch日本語РусскийItalianoالعربيةBahasa IndonesiaGreekHebrewNederlandsRomanianTamilvia Wikidata sitelinks · CC0