Number of 3Xn 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A281695

Number of 3Xn 0..2 arrays with no element equal to more than one 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) =15a(2) =847a(3) =14575a(4) =172398a(5) =1900616a(6) =17698286a(7) =154129813a(8) =1275251254a(9) =10132993005a(10) =78117611504a(11) =587910877987

External references