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A281329
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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.
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1
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0, 304, 27144, 953236, 31906806, 977717308, 28739292730, 819460734096, 22863636278820, 627462391921784, 16998237537647454, 455708712521193672, 12112703985140255876, 319648041131418167054, 8383975282118464984646
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