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A027081
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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=2n-3, T given by A027052.
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0
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8, 56, 438, 3574, 29738, 249200, 2094902, 17648718, 148968822, 1259807224, 10674450652, 90618393250, 770728674864, 6567151658496, 56054864624310, 479267092351534
(list; graph; refs; listen; history; internal format)
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