Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
A207405
Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =10a(1) =100a(2) =390a(3) =1521a(4) =4212a(5) =11664a(6) =26676a(7) =61009a(8) =123006a(9) =248004a(10) =456666a(11) =840889a(12) =1445192a(13) =2483776a(14) =4042440a(15) =6579225a(16) =10244610a(17) =15952036a(18) =23944030a(19) =35940025a(20) =52300380a(21) =76108176a(22) =107854812a(23) =152843769a(24) =211679286a(25) =293162884a(26) =397932402
External references
- oeis: A207405