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0, 0, 0, 0, 1, 20, 480, 10560, 272640, 8709120, 280627200, 10644480000, 439404134400, 18781972070400, 873535419187200, 45751167221760000, 2665172872986624000, 160281737951182848000, 10593163661832880128000
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,6
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COMMENTS
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A005867 can be generated recursively using A006093 and A000165 can be generated recursively using the even numbers. Since all primes after 2 are odd, (A005867 - A000165)/96 is an integer.
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LINKS
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EXAMPLE
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A005867(n+1) begins 1, 2, 8, 48, 480, 5760, 92160, ...
A000165(n) begins 1, 2, 8, 48, 384, 3840, 46080, ...
difference begins 0, 0, 0, 0, 96, 1920, 46080, ... .
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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