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A096769
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a(n)=Max{ (i+j)!/i!^2 | 0<=i,j<=n }.
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0
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1, 2, 6, 30, 180, 1260, 10080, 100800, 1108800, 13305600, 172972800, 2421619200, 36324288000, 617512896000, 11115232128000, 211189410432000, 4223788208640000, 88699552381440000, 1951390152391680000
(list; graph; refs; listen; history; internal format)
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