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 A347200 Primes p with the following property: let d_1, d_2, ... be the distinct digits occurring in the decimal expansion of p. Then for each d_i, dropping all the digits d_i from p produces a prime number, and for each digit pair (d_i, d_j), dropping all the digits d_i and all the digits d_j from p also produces a prime number. Leading 0's are not allowed. 0
 1531, 2113, 2131, 2311, 10531 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(6) > 10^10. a(6) <= 2111111111111111111111113 (25 digits). - Jon E. Schoenfield, Aug 22 2021 LINKS Table of n, a(n) for n=1..5. EXAMPLE With 2113, omitting all instances of 1's gives 23, 2's gives 113, 3's gives 211, 1's and 2's gives 3, 1's and 3's gives 2, and 2's and 3's gives 11. All of these are prime numbers. CROSSREFS Cf. A057876. Sequence in context: A333721 A030061 A122707 * A057327 A057328 A110022 Adjacent sequences: A347197 A347198 A347199 * A347201 A347202 A347203 KEYWORD nonn,base,more AUTHOR Musab Akbas, Aug 22 2021 STATUS approved

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Last modified November 30 00:17 EST 2023. Contains 367452 sequences. (Running on oeis4.)