🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسی中文日本語EntityQ1486643· pop 23· linked from 259 articlespronic numberAlso known as oblong number, rectangular number, heteromecic numberfigurate numberAvailable in 23 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBulgarianCatalanConnectionsprime numberEntityFibonacci sequenceEntityCategoriesFigurate numbersInteger sequences