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A027225
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a(n) = Sum{T(n,k)*T(n,k+2), 0<=k<=n-2, T given by A026747.
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0
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1, 8, 52, 247, 1416, 6056, 33731, 139016, 770116, 3121259, 17335095, 69642995, 388958218, 1554558921, 8740670953, 34818606079, 197136480944, 783522002716
(list; graph; refs; listen; history; internal format)
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