Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
A305480
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =13a(1) =49a(2) =70a(3) =192a(4) =577a(5) =1558a(6) =3910a(7) =10465a(8) =27679a(9) =70960a(10) =185085a(11) =482009a(12) =1244823a(13) =3230042a(14) =8373967a(15) =21665119a(16) =56140661a(17) =145406933a(18) =376386012a(19) =974846599a(20) =2524431274a(21) =6535798997a(22) =16924746068a(23) =43825543193a(24) =113474650030a(25) =293830839732
External references
- oeis: A305480