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A027280
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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=2n-3, T given by A026568.
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0
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26, 164, 1224, 7664, 51488, 326456, 2126376, 13574046, 87554326, 560845908, 3607790136, 23158545126, 148945375022, 957564479960
(list; graph; refs; listen; history; internal format)
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