Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.

A255087

Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.

Terms

    a(0) =1483a(1) =2005a(2) =3696a(3) =9484a(4) =24034a(5) =63535a(6) =169879a(7) =457314a(8) =1242486a(9) =3394161a(10) =9273737a(11) =25300189a(12) =68975401a(13) =188221278a(14) =514748790a(15) =1410140486a(16) =3863219328a(17) =10570719404a(18) =28893962892a(19) =78972139302a(20) =216015856441a(21) =591406897153

External references