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A171055 In the sequence of prime numbers, replace all the '9' digits with '6' and vice versa. 3
2, 3, 5, 7, 11, 13, 17, 16, 23, 26, 31, 37, 41, 43, 47, 53, 56, 91, 97, 71, 73, 76, 83, 86, 67, 101, 103, 107, 106, 113, 127, 131, 137, 136, 146, 151, 157, 193, 197, 173, 176, 181, 161, 163, 167, 166, 211, 223, 227, 226, 233, 236, 241, 251, 257, 293 (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, 6 -> q} /. {p -> 6, q -> 9}] & /@ Prime[Range[100]] (* Vincenzo Librandi, Jul 06 2012, after Harvey P. Dale in similar sequences *)

PROG

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

CROSSREFS

Sequence in context: A249823 A171049 A171053 * A117285 A100546 A117094

Adjacent sequences:  A171052 A171053 A171054 * A171056 A171057 A171058

KEYWORD

nonn,base,easy

AUTHOR

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

STATUS

approved

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Last modified April 7 10:43 EDT 2020. Contains 333301 sequences. (Running on oeis4.)