{"version":"1.0","type":"link","title":"Decagonal number - Newikis","description":"In mathematics, a decagonal number is a figurate number that extends the concept of triangular and square numbers to the decagon (a ten-sided polygon). However, unlike the triangular and square numbers, the patterns involved in the construction of decagonal numbers are not rotationally symmetrical.…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}