18?18×10 offsets from -2 to +42
18×11 offsets from +11 to +55
18×12 offsets from +24 to +68
18×13 offsets from +36 to +83
19?
19×9.5 offsets from +4 to +42
19×10 offsets from +20 to +44
19×11 offsets from +23 to +55
19×12 offsets from +36 to +68
20?
20×9.5 offsets from +7 to +43
20×10.5 offsets from +20 to +57
20×11 offsets from +21 to +61
20×12 offsets from +39 to +75
22?
22×10.5 offsets from +10 to +49
22×12 offsets from +29 to +68