🌐EnglishEnglishDeutschFrançaisItalianoPortuguês中文EntityQ3343081· pop 7· linked from 213 articlesundulating numbernumber that has the digit form ababab... in base 10Available in 7 languagesFrançaisDeutsch中文ItalianoBasquezh_yuevia Wikidata sitelinks · CC0Connectionsprime numberEntityfigurate numberEntityCategoriesBase-dependent integer sequences