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A218231
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Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..2 nX6 array
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1
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49, 3839, 253825, 16187585, 1035156707, 66220959971, 4236306950287, 271005420795533, 17336767848485223, 1109068372629093745, 70949364820791381147, 4538775509557133929359, 290354722371972160509315
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