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A106391
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A "cosh transform" of binomial(2n,n-1).
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0
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0, 1, 4, 18, 80, 365, 1692, 7945, 37648, 179595, 861020, 4143832, 20004096, 96810779, 469508340, 2281123530, 11100465216, 54093131147, 263929559436, 1289217255934, 6303934406640, 30853639964847, 151139139048084
(list; graph; refs; listen; history; internal format)
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