Number of nX3 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j).
A229929
Number of nX3 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =3a(1) =115a(2) =1889a(3) =33119a(4) =575757a(5) =10015447a(6) =174306687a(7) =3033162257a(8) =52780116071a(9) =918441159087
External references
- oeis: A229929