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A027297
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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=[ (n-3)/2 ], T given by A026022.
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0
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1, 4, 30, 104, 567, 1952, 9453, 32900, 150029, 528956, 2327156, 8303216, 35679835, 128633440, 543723257, 1977821700, 8260172309, 30278441400, 125314192728, 462409521376
(list; graph; refs; listen; history; internal format)
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