Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.

A266015

Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.

Terms

    a(0) =1a(1) =1a(2) =22a(3) =14a(4) =70a(5) =154a(6) =486a(7) =1602a(8) =5777a(9) =10188a(10) =28506a(11) =101227a(12) =267042a(13) =698241a(14) =2005275a(15) =5355840a(16) =15507088a(17) =43713710a(18) =117062325a(19) =328169426a(20) =927529600a(21) =2543571216a(22) =7113125250a(23) =19776079964a(24) =54664483400a(25) =152873904217a(26) =425365839757

External references