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131Spades — For other uses, see Spade (disambiguation). Origin United States Alternative name(s) Call Bridge Type Trick taking …
132De Bruijn sequence — A diagram showing the De Bruijn sequence where k=2 and n=2 In combinatorial mathematics, a k ary De Bruijn sequence B(k, n) of order n, named after the Dutch mathematician Nicolaas Govert de Bruijn, is a cyclic sequence of a given alphabet A …
