

A134596


The largest ndigit primeval number A072857.


5



2, 37, 137, 1379, 13679, 123479, 1234679, 12345679, 102345679, 1123456789, 10123456789
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OFFSET

1,1


COMMENTS

Former definition: The least ndigit number m (i.e., m >= 10^(n1)) which yields A076730(n) = the maximum, for m < 10^n, of A039993(m) = number of primes that can be formed using some or all digits of m.
Subsequence of A072857 consisting of the largest terms of given length.  M. F. Hasler, Mar 12 2014


LINKS

Table of n, a(n) for n=1..11.
M. Keith, Integers containing many embedded primes


FORMULA

a(n) = max { m in A072857, m < 10^n }.  M. F. Hasler, Mar 12 2014


PROG

(PARI) A134596(n, A=A072857)=vecmax(select(t>logint(t, 10)+1==n, A)) \\ where A072857 must comprise all n digit terms of that sequence.  M. F. Hasler, Oct 14 2019


CROSSREFS

Cf. A039993, A072857, A076730, A134597.
Sequence in context: A262182 A142077 A107182 * A139119 A244757 A298476
Adjacent sequences: A134593 A134594 A134595 * A134597 A134598 A134599


KEYWORD

nonn,base,more


AUTHOR

N. J. A. Sloane, Jan 25 2008


EXTENSIONS

Link fixed by Charles R Greathouse IV, Aug 13 2009
Definition reworded and values of a(6)a(11) added by M. F. Hasler, Mar 11 2014


STATUS

approved



