Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.
A264240
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.
Terms
- a(0) =57a(1) =557a(2) =9005a(3) =119737a(4) =1696877a(5) =23471441a(6) =327315125a(7) =4550623993a(8) =63332634829a(9) =881085142545
External references
- oeis: A264240