Probably Art # 169: Circle

26 circles drawn in 2 shade(s) chosen from 4 unique size(s).

$$ s = .00756232, \; $$ $$ | \lbrace \theta \rbrace | = 2, $$ $$ | \lbrace r \rbrace | = 4,$$ $$ r_0 = 0.0500,$$ $$ R = 3.00, $$ $$r \sim \beta(35.000, 65.000), $$ $$\theta \sim \beta(6.000, 5.000). $$