A068694 Largest n-digit prime with all odd digits.

7, 97, 997, 9973, 99991, 999979, 9999991, 99999971, 999999937, 9999999557, 99999999977, 999999999959, 9999999999971, 99999999999973, 999999999999577, 9999999999999937, 99999999999999997, 999999999999999737

Offset

1,1

Links

Table of n, a(n) for n=1..18.

Formula

a(n)<=A003618(n). - R. J. Mathar, May 18 2007

Crossrefs

Cf. A068690, A068691, A068692, A068693.

Cf. A003618.

Sequence in context: A241206 A127892 A125590 * A158579 A003618 A173833

Adjacent sequences: A068691 A068692 A068693 * A068695 A068696 A068697

Keyword

base,nonn

Author

Amarnath Murthy, Mar 03 2002

Extensions

More terms from Sascha Kurz, Mar 17 2002

Status

approved