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A171054 In the sequence of prime numbers, replace all the '9' digits with '5' and vice versa. 3
2, 3, 9, 7, 11, 13, 17, 15, 23, 25, 31, 37, 41, 43, 47, 93, 95, 61, 67, 71, 73, 75, 83, 85, 57, 101, 103, 107, 105, 113, 127, 131, 137, 135, 145, 191, 197, 163, 167, 173, 175, 181, 151, 153, 157, 155, 211, 223, 227, 225, 233, 235, 241, 291, 297, 263 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

FromDigits[IntegerDigits[#] /. {9 -> p, 5 -> q} /. {p -> 5, q -> 9}] & /@ Prime[Range[100]] (* Vincenzo Librandi, Apr 07 2013 *)

PROG

(PARI) a(n)=my(v=[0, 1, 2, 3, 4, 9, 6, 7, 8, 5]); subst(Pol(apply(k->v[k+1], digits(prime(n)))), 'x, 10) \\ Charles R Greathouse IV, Jul 31 2013

CROSSREFS

Sequence in context: A199963 A016634 A244257 * A205860 A318948 A328424

Adjacent sequences:  A171051 A171052 A171053 * A171055 A171056 A171057

KEYWORD

nonn,base,easy

AUTHOR

N. J. A. Sloane and Vincenzo Librandi, Sep 04 2010

STATUS

approved

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Last modified May 26 18:08 EDT 2020. Contains 334630 sequences. (Running on oeis4.)