Dipolar
Ulam-Type Spiral
Spiral origin at 0.
Spiral origin color-coded as a 6-fold.
“1” represented on spiral.
(Adjacent to 0, 0 is a 6-fold.)
“2” & “3” not represented on spiral.
(Not adjacent to a 6-fold.)
Color-coded number-groups:
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6-folds
prime adjacents
composite adjacents
Spiral features:
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Empty Locations
Spiral
Sector Lines
