Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 2,-2 -1,0 -1,2 1,0 or 0,-1.
A264375
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 2,-2 -1,0 -1,2 1,0 or 0,-1.
Terms
- a(0) =6a(1) =9a(2) =385a(3) =3778a(4) =63575a(5) =828400a(6) =11888603a(7) =163298870a(8) =2275569624a(9) =31552306013a(10) =437685392431
External references
- oeis: A264375