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57 is the number of compositions of 10 into distinct parts. [10] 57 is the seventh fine number, equivalently the number of ordered rooted trees with seven nodes having root of even degree. [11] 57 is also the number of nodes in a regular octagon when all of its diagonals are drawn, [12] and the first non-trivial icosagonal (20-gonal) number. [13]
57 - Dundee bus station or Blairgowrie, Wellmeadow - Perth bus station. A bus service operated by Stagecoach East Scotland. Close map. Timetable; Map
