an2a bn2at cn2atq dn2a en2at

zd3at 0d3atq 1d3a 2d3at 3d3atq

o43atq p43a q43at r43atq s43a

dv4a ev4at fv4atq gv4a hv4at

2l5at 3l5atq 4l5a 5l5at 6l5atq