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Search: id:A005700
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| A005700 |
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Number of Dyck paths: a(n) = number of walks of 2n unit steps north, east, south, or west starting and ending at the origin and confined to the first octant.
(Formerly M2975)
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+0
5
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| 1, 1, 3, 14, 84, 594, 4719, 40898, 379236, 3711916, 37975756, 403127256, 4415203280, 49671036900, 571947380775, 6721316278650, 80419959684900, 977737404590100, 12058761323277900, 150656212896017400
(list; graph; listen)
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