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A047073
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Sum{T(i,n-i): i=0,1,...,n}, array T as in A047072.
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2
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1, 2, 4, 4, 8, 12, 24, 40, 80, 140, 280, 504, 1008, 1848, 3696, 6864, 13728, 25740, 51480, 97240, 194480, 369512, 739024, 1410864, 2821728, 5408312, 10816624, 20801200, 41602400, 80233200, 160466400, 310235040, 620470080, 1202160780
(list; graph; refs; listen; history; internal format)
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