Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
A264275
Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
Terms
- a(0) =64a(1) =1800a(2) =50625a(3) =1143000a(4) =25806400a(5) =600090240a(6) =13954224384a(7) =323177889984
External references
- oeis: A264275