Goldberg Polyhedra C20(i2+ij+j2)

i = 1 2 3 4 5 6
j = 0 C20 C80 C180 C320 C500 C720
1 C60 C140 C260 C420 C620 C860
2 C240 C380 C560 C780 C1040
3 C540 C740 C980 C1260

Mitsuho Yoshida