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A028917
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a(n) = (3*n+1)! / (24*n).
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0
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1, 105, 50400, 64864800, 174356582400, 844757641728000, 6690480522485760000, 80787552309015552000000, 1411520113943119724544000000, 34261827725741345073856512000000, 1118306056968197503210676551680000000, 47790809344535920299708262436044800000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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