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A171040 In the sequence of prime numbers, replace all the '7' digits with '6' and vice versa. 3
2, 3, 5, 6, 11, 13, 16, 19, 23, 29, 31, 36, 41, 43, 46, 53, 59, 71, 76, 61, 63, 69, 83, 89, 96, 101, 103, 106, 109, 113, 126, 131, 136, 139, 149, 151, 156, 173, 176, 163, 169, 181, 191, 193, 196, 199, 211, 223, 226, 229, 233, 239, 241, 251, 256, 273 (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[#]/.{7->p, 6->q}/.{p->6, q->7}]&/@Prime[Range[100]] (* Vincenzo Librandi, Mar 11 2013 *)

PROG

(PARI) a(n)=my(v=[0, 1, 2, 3, 4, 5, 7, 6, 8, 9]); subst(Pol(apply(k->v[k+1], digits(prime(n)))), 'x, 10) \\ Charles R Greathouse IV, Jul 26 2013

CROSSREFS

Sequence in context: A137808 A275525 A091909 * A317256 A100883 A240303

Adjacent sequences:  A171037 A171038 A171039 * A171041 A171042 A171043

KEYWORD

nonn,base,easy

AUTHOR

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

STATUS

approved

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Last modified November 21 00:12 EST 2019. Contains 329348 sequences. (Running on oeis4.)