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A027271
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a(n) = Sum{(k+1)*T(n,k)}, 0<=k<=2n, T given by A026536.
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0
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1, 4, 18, 48, 180, 432, 1512, 3456, 11664, 25920, 85536, 186624, 606528, 1306368, 4199040, 8957952, 28553472, 60466176, 191476224, 403107840, 1269789696, 2660511744, 8344332288, 17414258688, 54419558400, 113192681472
(list; graph; refs; listen; history; internal format)
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