Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and equal numbers of elements moved upwards and downwards.
A263741
Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and equal numbers of elements moved upwards and downwards.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =14a(4) =46a(5) =282a(6) =1118a(7) =5962a(8) =21974a(9) =100324a(10) =384813a(11) =1770579a(12) =7304326a(13) =33789034a(14) =142823462a(15) =650681108a(16) =2776615816a(17) =12494221594a(18) =53928255898a(19) =241817051980
External references
- oeis: A263741