Number of consistent sets of 5 irreflexive binary order relationships over n objects.

A147821

Number of consistent sets of 5 irreflexive binary order relationships over n objects.

Terms

    a(0) =108a(1) =6180a(2) =83952a(3) =601944a(4) =2991576a(5) =11662056a(6) =38167920a(7) =109368864a(8) =282174948a(9) =668565612a(10) =1475938464a(11) =3069513720a(12) =6065522736a(13) =11466274512a(14) =20850952608a(15) =36639176832a(16) =62447999580a(17) =103567126068a(18) =167581781136a(19) =265177823064a(20) =411169457160a(21) =625796259000

External references