If (2n+1)+(2n+3)+(2n+5)+...+(2n+47)=5280(2n + 1) + (2n + 3) + (2n + 5) + ... + (2n + 47) = 5280(2n+1)+(2n+3)+(2n+5)+...+(2n+47)=5280, then whatis the value of 1+2+3+..+n?1 + 2 + 3 + .. + n?1+2+3+..+n?
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