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 A104153 Numbers n such that n99 is prime and n is a multiple of ten. 2
 20, 40, 50, 100, 130, 170, 230, 260, 280, 320, 350, 400, 460, 560, 580, 610, 620, 650, 680, 700, 740, 760, 910, 940, 1030, 1070, 1150, 1160, 1190, 1220, 1280, 1300, 1360, 1420, 1460, 1490, 1660, 1670, 1700, 1730, 1790, 1820, 1850, 1910, 2020, 2080, 2120, 2230, 2260, 2350, 2380, 2470, 2480 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[10*Range[250], PrimeQ[FromDigits[Join[IntegerDigits[#], {9, 9}]]]&] (* Harvey P. Dale, Jan 06 2013 *) CROSSREFS Cf. A102703. Sequence in context: A235289 A296764 A046794 * A049057 A065607 A008602 Adjacent sequences:  A104150 A104151 A104152 * A104154 A104155 A104156 KEYWORD base,nonn AUTHOR Parthasarathy Nambi, Mar 08 2005 STATUS approved

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Last modified August 22 05:46 EDT 2019. Contains 326172 sequences. (Running on oeis4.)