A090518 Primes arising in A090517, or 0 if A090517(n) = 0.

5, 11, 83, 769, 3571, 52631, 1428571, 3703703, 83333333, 769230769, 5882352941, 13513513513, 588235294117, 7142857142857, 12195121951219, 151515151515151, 2777777777777777, 22727272727272727, 1111111111111111111

Offset

1,1

Comments

Conjecture: No term is zero.

Links

Table of n, a(n) for n=1..19.

Prog

(PARI) A090518(n)={ local(k, tenn) ; k=1 ; tenn=10^n ; while(1, if( isprime(floor(tenn/k)), return(floor(tenn/k)) ) ; k++ ; ) ; } { for(n=1, 40, print1(A090518(n), ", ") ; ) } - R. J. Mathar, Nov 19 2006

Crossrefs

Cf. A090517, A090519, A090520.

Sequence in context: A345015 A002359 A292754 * A057726 A057727 A228503

Adjacent sequences: A090515 A090516 A090517 * A090519 A090520 A090521

Keyword

base,nonn

Author

Amarnath Murthy, Dec 07 2003

Extensions

Corrected and extended by R. J. Mathar, Nov 19 2006

Status

approved