Number of binary arrangements of total n 1's, without adjacent 1's on n X n array connected n-s.
A197989
Number of binary arrangements of total n 1's, without adjacent 1's on n X n array connected n-s.
Terms
- a(0) =1a(1) =4a(2) =45a(3) =886a(4) =24395a(5) =860336a(6) =36914493a(7) =1863645610a(8) =108131503623
External references
- oeis: A197989