A program that asks the user for a natural number and then calls a recursive function with that number as its argument. The recursive function would take an input value n as its parameter and print 1, then sum of first 2, the sum of first 3, .... ,the sum of first n natural numbers on separate lines. The following would be two sample runs of the program. Enter a natural number: 3 1 3 6 Enter a natural number: 5 1 3 6 10 15