ManualCountingAndCasework IntegerSolution MathCounts Intermediate
2013

Problem - 1850

How many collections of six positive, odd integers have a sum of $18$? Note that $1 + 1 + 1 + 3 + 3 + 9$ and $9 + 1 + 3 + 1 + 3 + 1$ are considered to be the same collection.

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