Number of permutations of an n-sequence discordant with three given permutations (see reference) in n-3 places.
A000380
Number of permutations of an n-sequence discordant with three given permutations (see reference) in n-3 places.
Terms
- a(0) =6a(1) =8a(2) =40a(3) =176a(4) =1421a(5) =10352a(6) =93114a(7) =912920a(8) =9929997a(9) =117970704a(10) =1521176826a(11) =21150414880a(12) =315400444070
External references
- oeis: A000380