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New amicable four-cycles
Authors:Karsten Blankenagel  Walter Borho  Axel vom Stein
Institution:Karsten Blankenagel, BUGH FB 7, Gauß{}straß{}e 20, 42097 Wuppertal, Germany ; Walter Borho, BUGH FB 7, Gauß{}straß{}e 20, 42097 Wuppertal, Germany ; Axel vom Stein, BUGH FB 7, Gauß{}straß{}e 20, 42097 Wuppertal, Germany
Abstract:Fifty new amicable four-cycles are discovered by the constructive method invented in 1969 by the second author.

Keywords:Number theory  sociable numbers  
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