Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318044
Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =46a(2) =1648a(3) =42793a(4) =1304057a(5) =37826270a(6) =1097286743a(7) =32035215365a(8) =933917327711
External references
- oeis: A318044