circle packing in an equilateral triangle (Q5121502)
From Wikidata
packing problem in discrete mathematics where the objective is to pack n unit circles into the smallest possible equilateral triangle;optimal solutions are known for n<13 and for any triangular number of circles,and conjectures are available for n<28
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English 
circle packing in an equilateral triangle

packing problem in discrete mathematics where the objective is to pack n unit circles into the smallest possible equilateral triangle;optimal solutions are known for n<13 and for any triangular number of circles,and conjectures are available for n<28
