Number of n X n 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A298918
Number of n X n 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =4a(2) =1a(3) =3a(4) =9a(5) =19a(6) =31a(7) =199a(8) =330a(9) =1377a(10) =6627a(11) =23223a(12) =113179a(13) =849856a(14) =5207476a(15) =43357615
External references
- oeis: A298918