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

A204840

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

Terms

    a(0) =56a(1) =132a(2) =132a(3) =318a(4) =524a(5) =318a(6) =804a(7) =1616a(8) =1616a(9) =804a(10) =2048a(11) =6370a(12) =7070a(13) =6370a(14) =2048a(15) =5304a(16) =21380a(17) =34100a(18) =34100a(19) =21380a(20) =5304a(21) =13786a(22) =81706a(23) =157872a(24) =247108a(25) =157872a(26) =81706a(27) =13786a(28) =36074a(29) =284982

External references