10251562500domain: NAppears in sequencesSquare of determinant of character table of the dihedral group with 2n elements.at n=14A063073Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 2,1.at n=8A264197