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 A074462 Average digit (rounded up) in the decimal expansion of a prime number. 3
 2, 3, 5, 7, 1, 2, 4, 5, 3, 6, 2, 5, 3, 4, 6, 4, 7, 4, 7, 4, 5, 8, 6, 9, 8, 1, 2, 3, 4, 2, 4, 2, 4, 5, 5, 3, 5, 4, 5, 4, 6, 4, 4, 5, 6, 7, 2, 3, 4, 5, 3, 5, 3, 3, 5, 4, 6, 4, 6, 4, 5, 5, 4, 2, 3, 4, 3, 5, 5, 6, 4, 6, 6, 5, 7, 5, 7, 7, 2, 5, 5, 3, 3, 4, 6, 4, 6, 6, 4, 5, 6, 7, 7, 5, 8, 3, 5, 3, 4, 4, 6, 6, 5, 7, 5, 7, 7, 6, 8, 3, 5, 4, 5, 6, 4, 4, 5, 6, 5, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) = A004427(A000040(n)). - Reinhard Zumkeller, May 27 2010 LINKS FORMULA a(n) = ceiling(A007605(n)/A097944(n)). - R. J. Mathar, Sep 23 2008 EXAMPLE The prime numbers begin with 2,3,5,7,11,13,17,19,23,... so the average digits rounded up are 2, 3, 5, 7, (1+1)/2=1, (1+3)/2=2, (1+7)/2=4, (1+9)/2=5, ceiling((2+3)/2)=3, ... CROSSREFS Cf. A000040, A074461, A073342. Sequence in context: A074461 A285095 A073342 * A113656 A007652 A060418 Adjacent sequences:  A074459 A074460 A074461 * A074463 A074464 A074465 KEYWORD easy,nonn,base AUTHOR Y. Kelly Itakura (yitkr(AT)mta.ca), Aug 23 2002 EXTENSIONS Offset changed to 1, cf. to A073342 added, and extended by R. J. Mathar, Sep 23 2008 STATUS approved

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Last modified September 22 02:48 EDT 2021. Contains 347605 sequences. (Running on oeis4.)