# .font: font.text_2
2020-05-26 21:33 Arno  
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this caves shows the relation between rolling bfly formations and the swarm bfly dancing fly formations. :-D  
  
\ the base-4 rolling formation has no 'dancing' counterpart. but from 9 bflies onward, every rolling formation has a corresponding dancing formation (with 1 bfly less).  
  
\ the only possible extension method i found is by adding columns at the left side (complete or incomplete). this in contrast to the ffly formations which have several more possibilities.  
  
\ also, using fflies in the center does not work for dancing/rolling bfly formations.