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A252442
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Number of (n+2)X(2+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3
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1
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1677, 13777, 131202, 1149386, 10157387, 91120655, 812431496, 7240016321, 64612694441, 576415113903, 5141552056964, 45867546386571, 409176329077618, 3650126535107922, 32561858854371260, 290476235647305936
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