Number of 5 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A281209
Number of 5 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =130a(2) =448a(3) =676a(4) =1141a(5) =1906a(6) =3137a(7) =5160a(8) =8510a(9) =14084a(10) =23379a(11) =38894a(12) =64795a(13) =108022a(14) =180126a(15) =300318a(16) =500525a(17) =833770a(18) =1388053a(19) =2309332a(20) =3839550a(21) =6379528a(22) =10592935a(23) =17578086a(24) =29151695a(25) =48317346a(26) =80038622a(27) =132514530a(28) =219282785a(29) =362687074
External references
- oeis: A281209