Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
A316285
Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =49a(2) =125a(3) =354a(4) =1372a(5) =3933a(6) =12454a(7) =42946a(8) =135396a(9) =437859a(10) =1454625a(11) =4718224a(12) =15398305a(13) =50682956a(14) =165816368a(15) =543317768a(16) =1785073445a(17) =5856614373a(18) =19223124004a(19) =63151760399a(20) =207409161018a(21) =681297182756
External references
- oeis: A316285