Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an n X 4 array with new integer colors introduced in row major order.

A215741

Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an n X 4 array with new integer colors introduced in row major order.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =8a(4) =78a(5) =1250a(6) =29084a(7) =908408a(8) =36224616a(9) =1780689974a(10) =105135525426

External references