Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and exactly two more elements moved upwards than downwards.
A263784
Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and exactly two more elements moved upwards than downwards.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =5a(5) =66a(6) =267a(7) =1721a(8) =6618a(9) =35203a(10) =144762a(11) =741173a(12) =3224052a(13) =16013645a(14) =70410201a(15) =336946471a(16) =1484278684a(17) =6936580487a(18) =30771798007a(19) =142201264901a(20) =634570792805
External references
- oeis: A263784