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A024729
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a(n) = Sum (a(2i-1)*a(n-2i+1), i = 1,2,...,k), where k = [ (n+1)/4 ].
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1
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1, 1, 5, 5, 5, 5, 30, 55, 80, 230, 530, 1080, 2505, 5555, 13755, 31330, 71405, 168605, 403830, 947180, 2199905, 5189130, 12724755, 30313630, 71503880, 171244630, 421182405, 1012930055, 2420011955, 5834077855, 14434795655, 34963583830
(list; graph; refs; listen; history; internal format)
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