Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.

A297508

Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.

Terms

    a(0) =1a(1) =29a(2) =110a(3) =314a(4) =1829a(5) =8803a(6) =34757a(7) =157673a(8) =735144a(9) =3208028a(10) =14196017a(11) =64154943a(12) =286007061a(13) =1271032033a(14) =5685858000a(15) =25403326244a(16) =113255416409a(17) =505585282497

External references