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A097515 (Largest prime < 10^n) + (smallest prime > 10^n). 0
18, 198, 2006, 19980, 199994, 1999986, 20000010, 199999996, 1999999944, 19999999986, 199999999980, 2000000000028, 20000000000008, 200000000000004, 2000000000000026, 19999999999999998, 200000000000000000 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A020920 A083812 A086573 * A177358 A026881 A181400

Adjacent sequences:  A097512 A097513 A097514 * A097516 A097517 A097518

KEYWORD

nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Aug 27 2004

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.