Friedmann's S-Numbers
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Description: These are numbers where an expression can be given using the operations of addition and squaring, using the digits of a number in order, which gives the original number. Algorithms, theorems and results.
issue of his monthly recreational mathematics column, , Erich Friedmann introduces the concept of S-numbers. These are numbers where an expression can be given, using the operations of addition and squaring, using the digits of a number in order, which gives the original number. For example
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