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A089328 Smallest prime of the form the concatenation r*k for r = 1 to n followed by a 1. 1
11, 241, 1231, 71421281, 2468101, 246810121, 244872961201441681, 8162432404856641, 1234567891, 10320630941251561872182492710301, 12345678910111, 12243648607284961081201321441, 43861291722152583013443874304735165591, 9418828237647056465875284694010341128122213161, 214263841051261471681892102312522732943151 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(3) = 1231 and k = 1.

CROSSREFS

Cf. A089329.

Sequence in context: A142672 A158297 A090921 * A077422 A196258 A121826

Adjacent sequences:  A089325 A089326 A089327 * A089329 A089330 A089331

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2003

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Sep 13 2005

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Last modified February 16 13:12 EST 2012. Contains 205909 sequences.