A057878 Primes with 2 distinct digits that remain prime (no leading zeros allowed) after deleting all occurrences of its digits d.

23, 37, 53, 73, 113, 131, 151, 211, 311, 11111111111111111131, 11111111111111117111, 11111111111131111111, 11111111131111111111, 111111111111111111111113, 111111111111111112111111, 111111111111111121111111, 111111111112111111111111, 111111115111111111111111

Offset

1,1

Comments

Digits 0, 4, 6, 8, and 9 can never occur; digits 2, 3, 5, 7 can occur at most once in a term; every other digit is a 1. - Sean A. Irvine, Jul 11 2022

Links

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

Crossrefs

Cf. A057876-A057883, A004022, A004023, A051362, A034302-A034305.

Sequence in context: A244282 A051362 A034302 * A019549 A272157 A129800

Adjacent sequences: A057875 A057876 A057877 * A057879 A057880 A057881

Keyword

nonn,base

Author

Patrick De Geest, Oct 15 2000

Extensions

More terms from Sean A. Irvine, Jul 11 2022

Status

approved