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Search: id:A144052
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| A144052 |
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Number of n X n binary arrays with every 1 adjacent to at least one other 1, but at most one 1 adjacent horizontally and at most one 1 adjacent vertically. |
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| 1, 10, 67, 1859, 144973, 23675451, 10663538347, 12275556405619, 35393545223418744, 261328488528715635157, 4921805399637541783782081, 235643299844227266763714703387
(list; graph; listen)
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