Number of nX4 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301837
Number of nX4 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =81a(2) =678a(3) =5748a(4) =48802a(5) =414385a(6) =3518619a(7) =29877293a(8) =253694309a(9) =2154171994a(10) =18291531681a(11) =155317282580
External references
- oeis: A301837