Probably Art # 82: Circle

9 circles drawn in 1 shade(s) chosen from 7 unique size(s).

$$ s = .01954917, \; $$ $$ | \lbrace \theta \rbrace | = 1, $$ $$ | \lbrace r \rbrace | = 7,$$ $$ r_0 = 0.0500,$$ $$ R = 1.00, $$ $$r \sim \beta(21.000, 33.000), $$ $$\theta \sim \beta(1.000, 1.000). $$