% 5/10/90%% slide experiments\magnification 1200\nopagenumbers\hsize 5.5in\vsize 8.5in\hoffset -0.5in\everydisplay={\hskip -0.5in}\centerline{\hskip -0.5in{\bf The rank 5 curve of smallest conductor}}\bigskip$$y^2+y=x^3-79x+342, \qquad \Delta = -19047851$$\smallskip$$c_4=3792\quad c_6=-295704$$\bigskip$$\Omega = 2.04764\dots$$\vskip 0.5in\hskip 0.5in $L^{(1)}(E,1)$ and $L^{(3)}(E,1)$ are zero to several places, and$${L^{(5)}(E,1)\over 5!}\approx 30.285711\dots, \qquad {\rm (using\ 4000\ terms)}$$\hskip 0.5in A basis for $E({\bf Q})$ is given by points with $x=5$, 4, 3, 7, 0,and $$R=14.790528\dots$$\hskip 0.5in And note that $${L^{(5)}(E,1)\over 5!\Omega}\approx 14.790539\dots $$\bye