T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.

A202647

T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.

Terms

    a(0) =66a(1) =172a(2) =172a(3) =462a(4) =530a(5) =462a(6) =1278a(7) =1766a(8) =1766a(9) =1278a(10) =3448a(11) =5948a(12) =7432a(13) =5948a(14) =3448a(15) =9394a(16) =19880a(17) =31560a(18) =31560a(19) =19880a(20) =9394a(21) =25526a(22) =66924a(23) =134338a(24) =171362a(25) =134338a(26) =66924a(27) =25526a(28) =69336a(29) =224940

External references