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A252306
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Number of (1+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7
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1
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864, 1126, 1675, 2670, 4349, 7138, 12027, 20001, 33175, 56339, 94176, 156500, 266470, 446079, 742112, 1264356, 2117176, 3525323, 6004166, 10052927, 16753070, 28510417, 47726510, 79602575, 135332893, 226509989, 378121578, 642150721
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