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A027331
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a(n) = Sum{T(n,k)*T(n,k+2)}, 0<=k<=m, where m=2 for n=2 and m=n+1 for n >= 3; T given by A026148.
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0
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5, 36, 293, 2374, 19398, 159072, 1310669, 10844525, 90088935, 751173656, 6284938344, 52752138077, 444072874534
(list; graph; refs; listen; history; internal format)
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