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A081559
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Expansion of exp(cosh(2x)).
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2
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1, 4, 64, 1984, 97024, 6713344, 615829504, 71654785024, 10243143368704, 1755968011239424, 354197952894337024, 82788022987201183744, 22140953727834378993664, 6703959915806302859689984
(list; graph; refs; listen; history; internal format)
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