🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ855282· pop 25· linked from 32 articlesCatalan's constantAlso known as Gvalue of the Dirichlet beta function with two as the argumentAvailable in 25 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةCatalanConnectionsZeta constantEntitymathematicsEntityCategoriesCombinatoricsMathematical constants