🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ816063· pop 29· linked from 273 articlesBell numberinteger sequence counting the possible partitions of a setAvailable in 29 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoالعربيةBasqueCatalanFinnishConnectionsprime numberEntityfigurate numberEntityCategoriesInteger sequences