In C language Create a program that calculates and displays the first n numbers from the Triangular number series: (Challenge: Can you display the dots using printf() function?) Triangular Number The triangular number Ts is a figurate number that can be represented in the form of a triangular grid of points where the first row contains a single element and each subsequent row contains one more element than the previous one. This is illustrated above for T-1, T2 = 3 The triangular numbers are therefore 1,1+2 1 + 2 + 3 1 + 2 + 3 + 4 , so for n = 1.2 , the first few are 1, 3, 6, 10, 15, 21, More formally, a triangular number is a number obtained by adding all positive integers less than or equal to a given positive integer ", i.e. n(n +1) n+1 A1 Taken from: http://mathworld.wolfram.com/TriangularNumber.html