Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

A204726

Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

Terms

    a(0) =1624a(1) =12744a(2) =44726a(3) =353626a(4) =1425462a(5) =10332706a(6) =45388048a(7) =307057212a(8) =1435551124a(9) =9233564740a(10) =45214143964a(11) =280355783930

External references