Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A320366
Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =32a(2) =228a(3) =1612a(4) =11396a(5) =80568a(6) =569608a(7) =4027076a(8) =28471056a(9) =201287740a(10) =1423085756a(11) =10061085036a(12) =71130943216a(13) =502889207744
External references
- oeis: A320366