Number of (n+2)X(n+2) symmetric binary matrices without the pattern 0 1 1 antidiagonally.

A190532

Number of (n+2)X(n+2) symmetric binary matrices without the pattern 0 1 1 antidiagonally.

Terms

    a(0) =64a(1) =768a(2) =13824a(3) =331776a(4) =11943936a(5) =644972544a(6) =54177693696

External references