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Some sums (Posted on 2015-04-07) Difficulty: 3 of 5
Consider the two equalities:
1!+5! = 11^2
4!+5! = 12^2

Is there a pair of successive integers (below 1000) such that their squares can be written as a sum of 2 factorials?

See The Solution Submitted by Ady TZIDON    
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  Subject Author Date
Solutionanal. solution..................... spoilerAdy TZIDON2015-04-11 00:46:04
Solutioncomputer solutionCharlie2015-04-07 14:34:22
SolutionanswerDej Mar2015-04-07 14:24:56
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