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Search: id:A149846
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| A149846 |
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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, -1, 1), (0, 1, 0), (1, 0, 0), (1, 1, -1)} |
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| 1, 2, 4, 12, 38, 118, 424, 1544, 5668, 22186, 86962, 347260, 1426428, 5869950, 24589692, 104252754, 444133962, 1916625390, 8318626668, 36335194794, 159998657938, 707382646426, 3146397539508, 14064764511358, 63107673236226, 284521869849658, 1287188819030996, 5843899644335638, 26625968697335426
(list; graph; listen)
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