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A074461 Average digit (rounded down) in the decimal expansion of a prime number. 3
2, 3, 5, 7, 1, 2, 4, 5, 2, 5, 2, 5, 2, 3, 5, 4, 7, 3, 6, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

a(n) = A004426(A000040(n)). [From Reinhard Zumkeller, May 27 2010]

LINKS

Table of n, a(n) for n=0..19.

EXAMPLE

prime numbers: 2,3,5,7,11,13,17,19,23... so the average digits rounded down are; 2, 3, 5, 7, (1+1)/2=1, (1+3)/2=2, (1+7)/2=4, (1+9)/2=5,floor((2+3)/2)=2...

CROSSREFS

Cf. A000040.

Sequence in context: A065859 A258062 A117819 * A073342 A074462 A113656

Adjacent sequences:  A074458 A074459 A074460 * A074462 A074463 A074464

KEYWORD

easy,nonn,base

AUTHOR

Y. Kelly Itakura (yitkr(AT)mta.ca), Aug 23 2002

STATUS

approved

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Last modified August 29 03:31 EDT 2015. Contains 261184 sequences.