Number of 5Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A281060
Number of 5Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =122a(2) =1492a(3) =3416a(4) =7803a(5) =16875a(6) =32370a(7) =59669a(8) =107693a(9) =191953a(10) =339219a(11) =595824a(12) =1041681a(13) =1814253a(14) =3149435a(15) =5451162a(16) =9409735a(17) =16202663a(18) =27835100a(19) =47716151a(20) =81633286a(21) =139397983a(22) =237621979a(23) =404396106a(24) =687167939a(25) =1165993033a(26) =1975805797
External references
- oeis: A281060