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Search: id:A027302
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| A027302 |
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a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=[ (n-1)/2 ], T given by A008315. |
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| 1, 2, 9, 24, 95, 286, 1099, 3536, 13479, 45220, 172150, 594320, 2265003, 7983990, 30487175, 109174560, 417812417, 1514797020, 5810065898, 21275014800, 81775140083, 301892460012
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