Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having index change (+-,+-) 0,2 1,1 or 1,0.
A263971
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having index change (+-,+-) 0,2 1,1 or 1,0.
Terms
- a(0) =465a(1) =10720a(2) =2604481a(3) =226810352a(4) =31702909989
External references
- oeis: A263971