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Search: id:A148997
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| A148997 |
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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, 0, 0), (-1, 0, 1), (0, 1, -1), (0, 1, 1), (1, -1, 1)} |
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| 1, 1, 3, 9, 33, 121, 468, 1859, 7558, 31270, 131330, 558115, 2396603, 10379648, 45292679, 198926208, 878692550, 3900981744, 17396764823, 77896353911, 350065380105, 1578398595372, 7138256186788, 32371596240950, 147175354377729, 670685606484390, 3062947647863016, 14016157023522647
(list; graph; listen)
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