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Search: id:A140307
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| A140307 |
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Number of n X n binary matrices containing at most four 1's in any 3 X 3 sub-block. |
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+0
1
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| 1, 2, 16, 256, 15982, 3082378, 1476568000, 2280441045555, 10599616558936358, 140380164790852384033
(list; graph; listen)
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