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A027261
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a(n) = Sum{(k+1)*T(n,k)}, 0<=k<=2n, T given by A025177.
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4
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1, 6, 18, 72, 270, 972, 3402, 11664, 39366, 131220, 433026, 1417176, 4605822, 14880348, 47829690, 153055008, 487862838, 1549681956, 4907326194, 15496819560, 48814981614, 153418513644, 481176247338
(list; graph; refs; listen; history; internal format)
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