In Pascal's triangle, look at the sum of every row (powers of 2), shade in multiples of 2, 3,4 etc to get nice patterns.
Here's some templates
https://www.dropbox.com/scl/fo/hcc27obw4lt29hxb59xkz/AAFhh-ekr_Ws9c_o7apbN_U?rlkey=0fpiqs63ueidp2j2bs49b6wde&st=r6oa3n23&dl=0

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