Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and the total absolute value of displacements not greater than 2*(n-1).
A263904
Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and the total absolute value of displacements not greater than 2*(n-1).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =20a(4) =76a(5) =300a(6) =1252a(7) =5324a(8) =22869a(9) =98497a(10) =426139a(11) =1850782a(12) =8067832a(13) =35280090a(14) =154696678a(15) =679891308a(16) =2994160190a(17) =13209317445a(18) =58367173629a(19) =258266895944
External references
- oeis: A263904