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A027665
a(n)/100000 gives log_10(n) to 5 places.
1
0, 30103, 47712, 60206, 69897, 77815, 84510, 90309, 95424, 100000, 104139, 107918, 111394, 114613, 117609, 120412, 123045, 125527, 127875, 130103, 132222, 134242, 136173, 138021, 139794, 141497, 143136, 144716, 146240
OFFSET
1,2
COMMENTS
A tribute to 5-place logarithm tables which served many generations of students and technical people. - Michael Somos, Sep 21 2002
a(10*n) = a(n) + 100000, virtually. - Reinhard Zumkeller, Nov 12 2011
LINKS
Eric Weisstein's World of Mathematics, Common Logarithm
Wikipedia, Common logarithm
MAPLE
lprint(round(evalf(100000*log(n)/log(10))));
PROG
(PARI) a(n)=if(n<1, 0, round(10^5*log(n)/log(10)))
(Haskell)
a027665 n = round $ 100000 * log (fromInteger n) / (log 10)
-- Reinhard Zumkeller, Nov 12 2011
CROSSREFS
Sequence in context: A066576 A104877 A237031 * A260459 A202598 A298429
KEYWORD
nonn,base
STATUS
approved