Number of monotone Boolean functions of n variables with 2 mincuts. Also number of Sperner systems with 2 blocks.

A016269

Number of monotone Boolean functions of n variables with 2 mincuts. Also number of Sperner systems with 2 blocks.

Terms

    a(0) =1a(1) =9a(2) =55a(3) =285a(4) =1351a(5) =6069a(6) =26335a(7) =111645a(8) =465751a(9) =1921029a(10) =7859215a(11) =31964205a(12) =129442951a(13) =522538389a(14) =2104469695a(15) =8460859965a(16) =33972448951a(17) =136276954149a(18) =546269553775

External references