Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
A304897
Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =86a(2) =330a(3) =2373a(4) =13954a(5) =88308a(6) =546357a(7) =3395402a(8) =21113828a(9) =131172423a(10) =815495131a(11) =5068082120a(12) =31501875273a(13) =195796100483
External references
- oeis: A304897