Skew 4-noid

skew 4noid toneck 001
skew 4noid toneck
skew 4noid grow 001
skew 4noid grow
skew 4noid st
skew 4noid st
skew 4noid sw
skew 4noid sw

see Symmetric 4-noid for math detail.

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Skew_4noid.pdf