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Interesting square sequence

Posted by NickMcG on 15/10/2009, 10:08 pm

Something I discovered while doing the latest puzzleup problem. It's related but different. Consider the sequence; 81,2025,3025,494209,24502500,25502500,52281984,60481729,6832014336 Interesting thing is that each term is the concatenation of two equal length integers whose sum squared is the same number. e.g. (494 + 209)^2 = 494209 Find the next terms in this sequence.

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Message Thread: Interesting square sequence - NickMcG 15/10/2009, 10:08 pm Re: Interesting square sequence - Edit - NickMcG 15/10/2009, 10:31 pm Re: Interesting square sequence - Edit - Denis Borris 15/10/2009, 10:57 pm Re: Interesting square sequence - Edit - NickMcG 15/10/2009, 11:00 pm OK then... - Denis Borris 15/10/2009, 11:58 pm Great Job!! - NickMcG 16/10/2009, 12:04 am « Back to thread

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