Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1.

A296319

Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1.

Terms

    a(0) =13a(1) =301a(2) =2747a(3) =37431a(4) =490668a(5) =6069953a(6) =78105580a(7) =994666167a(8) =12644605701a(9) =161191403242

External references