Number of nX5 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301787

Number of nX5 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =14a(2) =25a(3) =45a(4) =82a(5) =150a(6) =275a(7) =505a(8) =928a(9) =1706a(10) =3137a(11) =5769a(12) =10610a(13) =19514a(14) =35891a(15) =66013a(16) =121416a(17) =223318a(18) =410745a(19) =755477a(20) =1389538a(21) =2555758a(22) =4700771a(23) =8646065a(24) =15902592a(25) =29249426a(26) =53798081a(27) =98950097a(28) =181997602a(29) =334745778

External references