T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.

A205037

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.

Terms

    a(0) =256a(1) =3184a(2) =3184a(3) =39419a(4) =113020a(5) =39419a(6) =484930a(7) =3913664a(8) =3913664a(9) =484930a(10) =5968388a(11) =134492814a(12) =374394468a(13) =134492814a(14) =5968388a(15) =73466056a(16) =4627087816a(17) =35397425472a(18) =35397425472a(19) =4627087816a(20) =73466056a(21) =904294268a(22) =159230783550

External references