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Search: id:A060898
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| A060898 |
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Number of walks of length n on square lattice, starting at origin, staying in first, second and third quadrants |
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+0
2
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| 1, 4, 14, 54, 200, 776, 2940, 11466, 43980, 172170, 665544, 2612764, 10154144, 39949000, 155864280, 614260062, 2403739140, 9486263092, 37209147800, 147012850512, 577741491404, 2284848892872, 8993216244896
(list; graph; listen)
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