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Search: id:A027317
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| A027317 |
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a(n) = Sum{T(n,k)*T(n,k+2)}, 0<=k<=m-2, m=n for n=0,1,2,3; m=2n for n >= 4; T given by A026082. |
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| 1, 6, 71, 561, 4797, 41462, 359530, 3124752, 27213084, 237432807, 2075064759, 18162872365, 159198909233
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