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A075237 Primes whose base 7 reversal is also prime. 7
2, 3, 5, 11, 13, 17, 19, 23, 29, 37, 41, 43, 47, 53, 67, 71, 79, 89, 97, 101, 107, 127, 137, 139, 149, 151, 157, 167, 173, 179, 193, 197, 199, 211, 227, 229, 233, 241, 257, 269, 271, 277, 281, 307, 311, 331, 337, 347, 373, 389, 397, 401, 419, 421, 433, 439, 443 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Prime[ Select[ Range[100], PrimeQ[ FromDigits[ Reverse[ IntegerDigits[ Prime[ # ], 7]], 7]] &]]

CROSSREFS

Cf. A007500, A074832, A074833, A074834, A075235, A075236, A075238, A075239.

Sequence in context: A225856 A322173 A216509 * A040062 A115653 A042997

Adjacent sequences:  A075234 A075235 A075236 * A075238 A075239 A075240

KEYWORD

base,easy,nonn

AUTHOR

Robert G. Wilson v, Sep 09 2002

STATUS

approved

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Last modified June 23 09:00 EDT 2021. Contains 345395 sequences. (Running on oeis4.)