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A026979
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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=n-3, T given by A026659.
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0
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1, 10, 75, 372, 2082, 9382, 49135, 205900, 1089140, 4503138, 22149416, 89553324, 466147593, 1880356006, 9068681952, 36243551268, 187297716687, 748569870492
(list; graph; refs; listen; history; internal format)
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