Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0.

A263812

Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0.

Terms

    a(0) =82a(1) =948a(2) =11305a(3) =134028a(4) =1590733a(5) =18875976a(6) =223995034a(7) =2658056430a(8) =31542099589a(9) =374297467464

External references