Sum of different combinations.
112827
Find the sum of the binomial coefficients
40535
Sum over n variables
130083
Evaluating sum of a combination series
8049
Generating Combinations
155605
Find combinations in arrays
71616
Random numbers that sum up to specific value
93748
Alternative to Subsets to generate k-combinations
65070
Combinations of a penny, nickel, dime, and quarter
94836
Total combinations from number of unique combination?
30575
How to precalculate valid number of combinations instead of using while loop?
120748
Combination With Finite Replacements
65307
Simple combination/probability question based on string-length and possible-characters
38037
A problem with my reasoning in a problem about combinations
114863
Representing a given number as the sum of two squares.
157280
How do I sum up specific things in Numbers?
39724
Combinatorial Identities
64720
Expected value of sums