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Search: id:A027264
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| A027264 |
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a(n) = Sum{T(n,k)*T(n,k+2)}, 0<=k<=2n-2, T given by A026519. |
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| 5, 40, 150, 1279, 4797, 41462, 156900, 1365014, 5205950, 45501743, 174609162, 1531614109, 5906040623, 51952990090, 201114700568
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