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A112766 Smallest prime of the form 8 followed by n copies of k. 0
83, 811, 8111, 839393939, 81313131313, 8212121212121, 83333333, 89191919191919191, 8777777777, 829292929292929292929, 85151515151515151515151, 8313131313131313131313131, 811111111111111111111111111, 81313131313131313131313131313 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

a(3) = 8111, 8 followed by three copies of 1.

PROG

(PARI) for(n=1, 100, np=1; k=1; while(np, s="8"; for(i=1, n, s=concat(s, Str(k))); m=eval(s); if(isprime(m), print1(m", "); np=0, k++))) - Herman Jamke (hermanjamke(AT)fastmail.fm), May 01 2008

CROSSREFS

Sequence in context: A059935 A069596 A290407 * A128950 A068851 A250083

Adjacent sequences:  A112763 A112764 A112765 * A112767 A112768 A112769

KEYWORD

base,nonn,dumb

AUTHOR

Amarnath Murthy, Jan 02 2006

EXTENSIONS

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 01 2008

STATUS

approved

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Last modified January 18 19:43 EST 2020. Contains 331029 sequences. (Running on oeis4.)