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A045509
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Factorials having initial digit '1'.
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18
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1, 120, 1307674368000, 121645100408832000, 1124000727777607680000, 15511210043330985984000000, 10888869450418352160768000000, 10333147966386144929666651337523200000000, 13763753091226345046315979581580902400000000
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OFFSET
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1,2
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COMMENTS
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Benford's law shows that this sequence will contain about log 2/log 10 =~ 30% 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[40]!, First[IntegerDigits[#]]==1&] (* Harvey P. Dale, Aug 06 2013 *)
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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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