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A260369
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Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111
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1
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2880, 4438, 13632, 32488, 37948, 98032, 265120, 390138, 774416, 2085610, 3676672, 6576428, 16343884, 32624460, 57557052, 130763122, 277382484, 506936080, 1070477816, 2319259576, 4413899664, 8938596854, 19280847812, 38024306356
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