Number of 2 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
A293088
Number of 2 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =0a(2) =5a(3) =23a(4) =124a(5) =518a(6) =2103a(7) =8304a(8) =32561a(9) =127188a(10) =497290a(11) =1944992a(12) =7609668a(13) =29781058a(14) =116601073a(15) =456769568a(16) =1790429581a(17) =7022484654a(18) =27560850105a(19) =108231066278a(20) =425262686638
External references
- oeis: A293088