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A140311
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Number of n X n binary matrices containing no more than eight 1s in any 3 X 3 sub-block.
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1
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1, 2, 16, 511, 65089, 33066176, 66993993728, 541344347284385, 17445985904048740529, 2242340146792849255134720, 1149454044962768236388517543936, 2349989206497316681704056634171383423
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