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A121409 Prime numbers p such that p and prime(p) have no common decimal digit and prime(p) and prime(prime(p)) have no common decimal digit. 1
2, 3, 17, 19, 89, 317, 563, 1091, 2099, 3181, 5023, 44221, 53899, 410747, 410801, 448373, 451181, 481133, 519151, 617657, 738523, 882979, 992087, 1611433, 2167421, 2688299, 2723627, 2811089, 3331033, 3411043, 3499411, 3983911, 3988889, 6233933 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A119405. Positions of a(n) in A119405: A121410.

LINKS

Table of n, a(n) for n=1..34.

EXAMPLE

992087 is a term because p(992087)=15353531, p(15353531)=282479297, and 992087 and 15353531 have no common decimal digit, nor do 15353531 and 282479297.

CROSSREFS

Cf. A119405, A121410.

Sequence in context: A154274 A235628 A140834 * A041295 A128845 A128851

Adjacent sequences:  A121406 A121407 A121408 * A121410 A121411 A121412

KEYWORD

base,nonn,less

AUTHOR

Zak Seidov, Jul 28 2006

STATUS

approved

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Last modified September 18 23:45 EDT 2021. Contains 347549 sequences. (Running on oeis4.)