Restricted growth arrays¶
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class
sage.combinat.restricted_growth.RestrictedGrowthArrays(n)¶ Bases:
sage.combinat.combinat.CombinatorialClassEXAMPLES:
sage: from sage.combinat.restricted_growth import RestrictedGrowthArrays sage: R = RestrictedGrowthArrays(3) sage: R == loads(dumps(R)) True
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cardinality()¶ EXAMPLES:
sage: from sage.combinat.restricted_growth import RestrictedGrowthArrays sage: R = RestrictedGrowthArrays(6) sage: R.cardinality() 203
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