Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 1,1 2,2 -1,0 or 0,-1.
A264651
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 1,1 2,2 -1,0 or 0,-1.
Terms
- a(0) =0a(1) =9a(2) =22a(3) =112a(4) =716a(5) =3100a(6) =14871a(7) =73900a(8) =349328a(9) =1679736a(10) =8094842a(11) =38736132a(12) =186037049a(13) =893328303a(14) =4285139965a(15) =20570385615a(16) =98729249057a(17) =473793905479
External references
- oeis: A264651