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Triangular number AND sum of first m factorials
01-11-2018, 10:21 AM
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RE: Triangular number AND sum of first m factorials
Thanks Smile Don't let my proof stop your hunt, you'll be able to wile away many hours looking...

I hadn't realised that all square numbers that end in '5' actually end in '25'. I must have seen this before but never noticed or remembered it.


Pauli
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RE: Triangular number AND sum of first m factorials - Paul Dale - 01-11-2018 10:21 AM



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