Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,2 1,0 or -1,-2.
A264360
Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,2 1,0 or -1,-2.
Terms
- a(0) =18a(1) =120a(2) =936a(3) =7168a(4) =54720a(5) =418992a(6) =3204336a(7) =24514000a(8) =187528608a(9) =1434558960a(10) =10974201216a(11) =83950973056a(12) =642212998704
External references
- oeis: A264360