Number of NP-equivalence classes of self-dual threshold functions of n or fewer variables; number of majority (i.e., decisive and weighted) games with n players.

A001532

Number of NP-equivalence classes of self-dual threshold functions of n or fewer variables; number of majority (i.e., decisive and weighted) games with n players.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =21a(6) =135a(7) =2470a(8) =175428a(9) =52980624

External references