Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 1,0 0,-1 1,2 or -1,1.
A264587
Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 1,0 0,-1 1,2 or -1,1.
Terms
- a(0) =0a(1) =8a(2) =6a(3) =104a(4) =553a(5) =2232a(6) =21312a(7) =86812a(8) =553861a(9) =3407800a(10) =16888371a(11) =108293432a(12) =590867753a(13) =3371103500a(14) =19838294637a(15) =109788155032a(16) =640910245323
External references
- oeis: A264587