Number of 4 X n 0..2 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.

A281329

Number of 4 X n 0..2 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) =304a(2) =27144a(3) =953236a(4) =31906806a(5) =977717308a(6) =28739292730a(7) =819460734096

External references