On the other hand the possibility to directly generate the "k"-combination at index "N" has useful applications. Notably, it allows generating a random "k"-combination of an "n"-element set using a random integer "N" with formula_22, simply by converting that number to the corresponding "k"-combination. If a computer program needs to maintain a table with information about every "k"-combination of a given finite set, the computation of the index "N" associated with a combination will allow the table to be accessed without searching.