Permutations with Repetition. These are the easiest to calculate. where n is the number of things to choose from, and we choose r of them (Repetition allowed Combinations and · Lotteries · Pascal's Triangle · The Binomial Distribution.
I feel stupid, but I don't know how to calculate how many possible variations I can get from for . The number of permutations of n objects is n!.
Online calculator combinations without repetition. Calculates count of combinations without repetition or combination number. Combinatorial Calculator.