Number of 4Xn 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
A302001
Number of 4Xn 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =13a(2) =15a(3) =74a(4) =468a(5) =2036a(6) =10982a(7) =53440a(8) =271596a(9) =1360466a(10) =6832459a(11) =34345485a(12) =172485648a(13) =866676017a(14) =4353899691a(15) =21873626234a(16) =109891360736a(17) =552080909728
External references
- oeis: A302001