Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4 or 8 king-move adjacent elements, with upper left element zero.
A305250
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =13a(1) =61a(2) =65a(3) =163a(4) =439a(5) =1149a(6) =2985a(7) =8254a(8) =22801a(9) =62473a(10) =173206a(11) =483696a(12) =1351172a(13) =3787817a(14) =10653872a(15) =29999284a(16) =84591982a(17) =238789052a(18) =674640909a(19) =1907222785a(20) =5394518268a(21) =15264144917a(22) =43204286796a(23) =122316777218a(24) =346357487746
External references
- oeis: A305250