Number of minimal covers of an n-set that cover exactly 3 points uniquely.

A003467

Number of minimal covers of an n-set that cover exactly 3 points uniquely.

Terms

    a(0) =5a(1) =28a(2) =190a(3) =1340a(4) =9065a(5) =57512a(6) =344316a(7) =1966440a(8) =10813935a(9) =57672340a(10) =299893594a(11) =1526727748a(12) =7633634645a(13) =37580965520a(14) =182536112120a(15) =876173330832

External references