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A027209
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a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026725.
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1
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1, 7, 34, 173, 741, 3549, 14670, 68683, 279715, 1294598, 5233060, 24052965, 96822587, 442972139, 1778697948, 8110611295, 32516501991, 147897243768, 592346459071, 2688895275974, 10762289869782, 48776681304283, 195143578562778, 883272843800993, 3532739195660162
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OFFSET
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2,2
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LINKS
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MAPLE
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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