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Search: id:A026954
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| A026954 |
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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=n-3, T given by A026386. |
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+0 1
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| 1, 10, 83, 452, 3171, 14700, 97482, 422544, 2730615, 11442786, 72932904, 299882916, 1895949055, 7706754370, 48478715240, 195623710160
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