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A123332
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a(n)=2^n*(GAMMA(n+1/2)/GAMMA(1/2) +(n-1)!), n=1,2....
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0
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3, 7, 31, 201, 1713, 18075, 227295, 3317265, 55103265, 1026318195, 21181092975, 479733356025, 11829834687825, 315481555464075, 9046941599670975, 277598531343758625
(list; graph; refs; listen; history; internal format)
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