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1, 1, 2, 6, 1, 9, 4, 2, 1, 12, 9, 8, 7, 7, 8, 9, 11, 1, 1, 2, 3, 5, 9, 1, 2, 4, 9, 1, 3, 7, 1, 3, 7, 1, 3, 10, 2, 6, 1, 4, 1, 3, 10, 2, 9, 2, 8, 2, 8, 2, 9, 2, 11, 3, 1, 4, 1, 7, 2, 11, 4, 1, 6, 2, 12, 4, 1, 9, 3, 1, 8, 3, 1, 8, 3, 1, 9, 4, 2, 12, 5, 2, 1, 8, 4, 2, 1, 7, 3, 2, 1, 7, 4, 2, 1, 9, 5, 3, 1, 1
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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EXAMPLE
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a(10) = 9 as 10! = 9100926_13 which has leading digit 9. - David A. Corneth, Jan 15 2021
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MATHEMATICA
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Table[First[IntegerDigits[n!, 13]], {n, 0, 100}] (* Harvey P. Dale, Dec 20 2015 *)
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PROG
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CROSSREFS
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Cf. A000142, A136699, A136754, A136755, A136756, A136757, A136758, A136759, A136760, A008905, A136761, A136762, A136764, A136765, A136766.
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KEYWORD
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nonn,easy,base
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AUTHOR
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STATUS
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approved
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