Number of (n+1) X (3+1) 0..1 arrays with no 2 X 2 subblock having zero or two 1s.
A251214
Number of (n+1) X (3+1) 0..1 arrays with no 2 X 2 subblock having zero or two 1s.
Terms
- a(0) =49a(1) =191a(2) =758a(3) =3089a(4) =12503a(5) =50912a(6) =206715a(7) =840931a(8) =3417338a(9) =13896689a(10) =56488843a(11) =229680232a(12) =933724343a(13) =3796257055a(14) =15433585490a(15) =62747204885a(16) =255100769239
External references
- oeis: A251214