Number of nX5 0..1 arrays with every element unequal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318021
Number of nX5 0..1 arrays with every element unequal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =95a(2) =419a(3) =2227a(4) =12039a(5) =60157a(6) =304184a(7) =1569163a(8) =8067785a(9) =41794215a(10) =216350270a(11) =1121920799a(12) =5819644170a(13) =30203030342a(14) =156774826962a(15) =813943024542
External references
- oeis: A318021