Thursday 23 March 2017

The integer sum jump series for x[x]

I am trying to remember what the series 1+2+3+4+5+...+n is equal to in order to determine the series of breaks within the graph of x[x]. I know it obviously diverges as it goes to infinity, but what is the equation for when n is finite?



The sequence for the series goes 1,3,6,10,15,21,28,36,45,55,66,78,...

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