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A127691
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(2*n+1)^n-(2*n-1)^n-(2*n)^n.
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2
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-1, 0, 0, 2, 64, 2002, 69264, 2697354, 117899520, 5740530914, 308814720400, 18213955960378, 1169672907313728, 81286160430474066, 6080123714344570128, 487166244246501489002, 41636260100744439399424, 3781449867356996500139458, 363724112817207189865471248
(list; graph; refs; listen; history; internal format)
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