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A087813
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(1/n)*(binomial(2n,n)-2^n) as n runs through the primes.
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0
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1, 4, 44, 472, 63944, 799416, 137263244, 1860249448, 357974884304, 1036802274574832, 15013817777670240, 47192717951302358280, 10360599532843724350568, 154361699651510683256944, 34589385964787861980005536, 118349529407778159289257602576
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OFFSET
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1,2
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LINKS
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MAPLE
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a:= n-> (p-> (binomial(2*p, p)-2^p)/p)(ithprime(n)):
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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