DiscreteMath`IntegerPartitions` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6762.
The functionality of IntegerPartitions can be obtained using the new kernel function IntegerPartitions.
Construct a restricted partition:
Version 5.2
![<< DiscreteMath`IntegerPartitions`
IntegerPartitions[5, 3]](Files/IntegerPartitions.en/legacy_1.gif)
{First@#, Length@#}& /@ Split@#& /@ IntegerPartitions[5, All, 3]