A069680 Primes with either no internal digits or all internal digits are 5.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 151, 157, 251, 257, 353, 359, 457, 557, 653, 659, 751, 757, 853, 857, 859, 953, 1553, 1559, 2551, 2557, 3557, 3559, 5557, 6551, 6553, 7559, 9551, 15551, 15559, 45553

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Crossrefs

Cf. A069675, A069676, A069677, A069678, A069679, A069681, A069682, A069683, A069684.

Sequence in context: A069677 A069678 A069679 * A069681 A069682 A069683

Adjacent sequences: A069677 A069678 A069679 * A069681 A069682 A069683

Keyword

nonn,base

Author

Amarnath Murthy, Apr 06 2002

Extensions

Offset corrected and name changed by Arkadiusz Wesolowski, Sep 07 2011

Status

approved