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Search: id:A145053
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| A145053 |
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One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 2. |
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+0 1
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| 15, 71, 175, 327, 987, 2079, 3603, 9831, 19947, 33951, 89787, 180615
(list; graph; listen)
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