Number of (n+5)X1 arrays of occupancy after each element moves up to +-n places including 0.

A222349

Number of (n+5)X1 arrays of occupancy after each element moves up to +-n places including 0.

Terms

    a(0) =144a(1) =1145a(2) =5525a(3) =22950a(4) =90440a(5) =350056a(6) =1348536a(7) =5195700

External references