Number of 3 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.
A281207
Number of 3 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) =10a(2) =56a(3) =98a(4) =176a(5) =310a(6) =537a(7) =922a(8) =1573a(9) =2672a(10) =4524a(11) =7640a(12) =12875a(13) =21658a(14) =36375a(15) =61006a(16) =102184a(17) =170954a(18) =285693a(19) =476954a(20) =795497a(21) =1325596a(22) =2207076a(23) =3671788a(24) =6103951a(25) =10139930a(26) =16833147a(27) =27926522a(28) =46302368a(29) =76725022
External references
- oeis: A281207