

A216333


Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order


1



1, 2, 15, 52, 877, 4140, 115975, 678570, 27644437, 190899322, 10480142147, 82864869804, 5832742205057, 51724158235372, 4506715738447323, 44152005855084346, 4638590332229999353, 49631246523618756274
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