`partitions``n`procedure- n
- integer

Returns the number of partitions of

`n`, which must be nonnegative. A partition of a positive integer`n`is a way of writing`n`as a sum of positive integers. The number 3 has the partitions`(+ 1 1 1)`,`(+ 1 2)`and`(+ 3)`.> (partitions 3) 3 > (partitions 4) 5

Wikipedia: Partition