Time for 1 iteration at lattice size 24x24 with Coulombic Repulsion == 66 seconds for 331776 + ops
Time for 1 iteration at lattice size 16x16 with Coulombic Repulsion == 13 seconds for 65536 + ops

Single gaussian basis, Z = 4, tolerance = .002 to .0025:
lowest energy double electron picture without Coulombic Repulsion nor Exchange Energy: Energy: -3.58630794676 for ion 4.0 and trial number: 25 with sigma: 1.8125
lowest energy double electron picture with Coulombic Repulsion only: Energy: -2.982757032 for ion 4.0 and trial number: 27 with sigma: 1.875
lowest energy double electron picture with Exchange Energy only: Energy: -3.6319201738 for ion 4.0 and trial number: 5 with sigma: 1.78125
lowest energy double electron picture with Coulombic Repulsion and Exchange Energy: Energy: -3.02152164934 for ion 4.0 and trial number: 6 with sigma: 1.828125

