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A293141
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E.g.f.: Product_{m>0} (1 - x^m + x^(2m)/2).
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3
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1, -1, -1, 0, 0, 0, 180, 0, 10080, 90720, 0, 0, 179625600, -1556755200, -10897286400, 326918592000, -2615348736000, -88921857024000, 800296713216000, -30411275102208000, 152056375511040000, 0, -351250227430502400000, -3231502092360622080000
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OFFSET
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0,7
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LINKS
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MAPLE
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N:= 30: # to get a(0)..a(N)
P:= mul(1-x^m+x^(2*m)/2, m=1..N):
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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