Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
A297979
Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =2a(3) =15a(4) =34a(5) =131a(6) =444a(7) =1980a(8) =6500a(9) =36299a(10) =183806a(11) =1060708a(12) =6012246a(13) =38646743a(14) =263315276a(15) =2019852311
External references
- oeis: A297979