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A024532
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a(n) = [ (3rd elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.
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0
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1, 5, 19, 56, 137, 297, 567, 1013, 1751, 2810, 4393, 6597, 9457, 13196, 18148, 24593, 32403, 42218, 54109, 68001, 84810, 104543, 127997, 156197, 188684, 225197, 266657, 312693, 364374, 426707, 496366, 574928, 660873, 759439, 866705, 985827, 1117711
(list; graph; refs; listen; history; internal format)
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