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 A102648 a(n) is the number of primes p between 0 and 99 such that 100*n+p is also prime. 0
 9, 6, 15, 6, 5, 13, 5, 6, 12, 5, 6, 11, 6, 8, 11, 6, 7, 10, 6, 7, 10, 8, 6, 9, 4, 6, 11, 7, 4, 10, 3, 6, 13, 4, 8, 11, 5, 5, 11, 6, 4, 15, 3, 4, 10, 5, 6, 6, 7, 4, 10, 6, 3, 11, 5, 7, 7, 7, 3, 11, 5, 6, 14, 1, 4, 9, 5, 6, 10, 4, 3, 11, 2, 4, 12, 4, 7, 9, 3, 5, 8, 6, 5, 8, 5, 5, 11, 7, 4, 8, 4, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) <= 20 LINKS EXAMPLE a(2)=6 because 11,211,23,223,29,229,41,241,71,271,83,283 are primes. CROSSREFS Sequence in context: A182873 A180856 A166520 * A040074 A088999 A073782 Adjacent sequences:  A102645 A102646 A102647 * A102649 A102650 A102651 KEYWORD nonn,easy AUTHOR Bill McEachen, Feb 03 2005 EXTENSIONS Edited by Don Reble (djr(AT)nk.ca), Mar 28 2006 STATUS approved

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