{"version":"1.0","type":"link","title":"Triangular number - Newikis","description":"A triangular number is a number that is the sum of all of the natural numbers up to a certain number. When formed using regularly spaced dots, they tend to form a shape of either an equilateral or a right triangle, hence the name.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/1/1c/First_six_triangular_numbers.svg/1280px-First_six_triangular_numbers.svg.png","thumbnail_width":1280,"thumbnail_height":1075}