Number of n X 5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 3 or 6 neighboring 1s.

A296551

Number of n X 5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 3 or 6 neighboring 1s.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =7a(4) =11a(5) =18a(6) =34a(7) =59a(8) =100a(9) =174a(10) =309a(11) =538a(12) =930a(13) =1620a(14) =2835a(15) =4941a(16) =8596a(17) =14980a(18) =26129a(19) =45536a(20) =79328a(21) =138252a(22) =240988a(23) =419984a(24) =731872a(25) =1275492a(26) =2222988a(27) =3874156a(28) =6751645a(29) =11766605

External references