T(n,k) = Number of (n+1) X (k+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

A204732

T(n,k) = Number of (n+1) X (k+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

Terms

    a(0) =544a(1) =1624a(2) =1624a(3) =4772a(4) =12744a(5) =4772a(6) =15688a(7) =44726a(8) =44726a(9) =15688a(10) =50920a(11) =353626a(12) =264998a(13) =353626a(14) =50920a(15) =171860a(16) =1425462a(17) =2122560a(18) =2122560a(19) =1425462a(20) =171860a(21) =576738a(22) =10332706a(23) =14348560a(24) =45026614a(25) =14348560a(26) =10332706a(27) =576738a(28) =1965706

External references