Number of nX7 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318551
Number of nX7 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =102a(2) =258a(3) =1782a(4) =12073a(5) =67976a(6) =437825a(7) =2689769a(8) =16069287a(9) =100151409a(10) =617826286a(11) =3829474681a(12) =23768872002a(13) =147448159384a(14) =915439292568
External references
- oeis: A318551