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A025559
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(1/1 - 1/3 + 1/6 + ... + d/C(n+1,2))*LCM{1,3,6,...,C(n+1,2)}, where d = (-1)^n.
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0
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1, 2, 5, 22, 24, 158, 331, 958, 986, 10594, 10804, 138142, 140122, 138406, 279815, 4711810, 4751850, 89604470, 90217082, 89662814, 90166694, 2063252482, 2072952172, 10320142286, 10361328662, 30969579386, 31075814086, 898330271594, 901007386034
(list; graph; refs; listen; history; internal format)
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