Number of 7Xn 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A281569
Number of 7Xn 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =1508a(2) =62882a(3) =162919a(4) =430995a(5) =919632a(6) =1818257a(7) =3326246a(8) =5744641a(9) =9601436a(10) =15859355a(11) =26033851a(12) =42510000a(13) =69365630a(14) =113056482a(15) =183794484a(16) =298249938a(17) =483393766a(18) =782278654a(19) =1263834968a(20) =2038915696a(21) =3284498896a(22) =5282364942
External references
- oeis: A281569