Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

A264129

Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

Terms

    a(0) =80a(1) =1040a(2) =13600a(3) =178000a(4) =2330000a(5) =30500000a(6) =399250000a(7) =5226250000a(8) =68412500000a(9) =895531250000

External references