Number of (n+2) X (7+2) 0..1 arrays with no 3 X 3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.

A258544

Number of (n+2) X (7+2) 0..1 arrays with no 3 X 3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.

Terms

    a(0) =234848a(1) =682276a(2) =956736a(3) =2414916a(4) =3826716a(5) =8773444a(6) =15444224a(7) =34739236a(8) =68785192a(9) =159314884a(10) =350720544a(11) =846460836a(12) =2012239968a(13) =5024257924a(14) =12517516032a(15) =31952992516a(16) =81660135036a(17) =211086951364a(18) =546410190784

External references