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Search: id:A148574
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| A148574 |
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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, 1), (0, 1, -1), (0, 1, 1), (1, 0, -1)} |
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+0
1
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| 1, 1, 3, 6, 20, 49, 172, 484, 1732, 5194, 19061, 59840, 222265, 722995, 2707778, 9031024, 34126550, 116009638, 440855651, 1523827413, 5816083375, 20364473133, 78075605101, 276294402102, 1062737326830, 3796951739926, 14643791215968, 52733250282433, 203923018220654, 739335703065172, 2865104006790009
(list; graph; listen)
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