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A027273
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a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=2n-1, T given by A026552.
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0
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2, 16, 52, 428, 1516, 12792, 46936, 402164, 1504432, 13015480, 49288856, 429204354, 1639174304, 14340670000, 55108565584, 483825847108
(list; graph; refs; listen; history; internal format)
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