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Search: id:A027331
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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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| 5, 36, 293, 2374, 19398, 159072, 1310669, 10844525, 90088935, 751173656, 6284938344, 52752138077, 444072874534
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