Number of (n+7)X1 arrays of occupancy after each element moves up to +-7 places including 0.

A222344

Number of (n+7)X1 arrays of occupancy after each element moves up to +-7 places including 0.

Terms

    a(0) =6435a(1) =24308a(2) =92340a(3) =352296a(4) =1348536a(5) =5175000a(6) =19896840a(7) =76608720a(8) =295281045a(9) =1139034799a(10) =4396352766a(11) =16975972331

External references