🌐EnglishEnglishFrançaisРусскийفارسی한국어中文日本語EntityQ5426031· pop 6· linked from 13 articlesFKT algorithmalgorithm for counting perfect matchings in planar graphsAvailable in 6 languagesFrançaisРусскийSerbianفارسی한국어via Wikidata sitelinks · CC0ConnectionswaterEntitychemistryEntityCategoriesGraph algorithmsPlanar graphs