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Search: id:A149815
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| A149815 |
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Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, 0, 1), (0, 1, 0), (1, -1, -1)} |
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| 1, 2, 4, 10, 26, 76, 248, 796, 2654, 8942, 30952, 112110, 403446, 1474050, 5415092, 20126040, 76723180, 291325720, 1115293334, 4283685580, 16561655330, 65111198066, 255211841296, 1005521776936, 3970064457452, 15742010094734, 63185813520174, 252973809922464, 1016451149145374, 4089942429478792
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