Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.
A264487
Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.
Terms
- a(0) =1a(1) =8a(2) =108a(3) =788a(4) =21466a(5) =142352a(6) =2870927a(7) =30309632a(8) =463508815a(9) =5517128232a(10) =80746395988a(11) =996650042932
External references
- oeis: A264487