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A171024 In the sequence of prime numbers, replace all the '5' digits with '1' and vice versa. 3
2, 3, 1, 7, 55, 53, 57, 59, 23, 29, 35, 37, 45, 43, 47, 13, 19, 65, 67, 75, 73, 79, 83, 89, 97, 505, 503, 507, 509, 553, 527, 535, 537, 539, 549, 515, 517, 563, 567, 573, 579, 585, 595, 593, 597, 599, 255, 223, 227, 229, 233, 239, 245, 215, 217, 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[#]/.{5->p, 1->q}/.{p->1, q->5}]&/@Prime[Range[100]] (* Vincenzo Librandi, Apr 07 2013 *)

PROG

(PARI) a(n)=my(v=[0, 5, 2, 3, 4, 1, 6, 7, 8, 9]); subst(Pol(apply(k->v[k+1], digits(prime(n)))), 'x, 10) \\ Charles R Greathouse IV, Jul 16 2013

CROSSREFS

Sequence in context: A104027 A192363 A097710 * A109198 A081320 A147865

Adjacent sequences:  A171021 A171022 A171023 * A171025 A171026 A171027

KEYWORD

nonn,base,easy

AUTHOR

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

STATUS

approved

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Last modified September 27 03:21 EDT 2020. Contains 337380 sequences. (Running on oeis4.)