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A045516
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Factorials with initial digit '4'.
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18
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40320, 479001600, 403291461126605635584000000, 4274883284060025564298013753389399649690343788366813724672000000000000, 40526919504877216755680601905432322134980384796226602145184481280000000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Benford's law shows that this sequence will contain about (log 5 - log 4)/log 10 =~ 10% of factorials. [Charles R Greathouse IV, Nov 13 2010]
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LINKS
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FORMULA
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MATHEMATICA
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Select[Range[200]!, IntegerDigits[#][[1]]==4&] (* Harvey P. Dale, Nov 05 2015 *)
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CROSSREFS
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For factorials with initial digit d (1 <= d <= 9) see A045509, A045510, A045511, A045516, A045517, A045518, A282021, A045519; A045520, A045521, A045522, A045523, A045524, A045525, A045526, A045527, A045528, A045529.
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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