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Search: id:A027303
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| A027303 |
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Sum{T(n,k)*T(n,k+2)}, 0<=k<=[ (n-3)/2 ], T given by A008315. |
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+0 1
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| 2, 5, 34, 98, 496, 1545, 7010, 22924, 98636, 333463, 1393014, 4824350, 19795200, 69818507, 283195638, 1013208668, 4078132240, 14758843463, 59087809638, 215859015800, 860951003152
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