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A171031 In the sequence of prime numbers, replace all the '6' digits with '3' and vice versa. 3

%I

%S 2,6,5,7,11,16,17,19,26,29,61,67,41,46,47,56,59,31,37,71,76,79,86,89,

%T 97,101,106,107,109,116,127,161,167,169,149,151,157,136,137,176,179,

%U 181,191,196,197,199,211,226,227,229,266,269,241,251,257,236

%N In the sequence of prime numbers, replace all the '6' digits with '3' and vice versa.

%H Vincenzo Librandi, <a href="/A171031/b171031.txt">Table of n, a(n) for n = 1..1000</a>

%t FromDigits[IntegerDigits[#]/.{6->p, 3->q}/.{p->3, q->6}]&/@Prime[Range[100]] (* _Vincenzo Librandi_, Apr 07 2013 *)

%o (PARI) a(n)=my(v=[0,1,2,6,4,5,3,7,8,9]);subst(Pol(apply(k->v[k+1], digits(prime(n)))),'x,10) \\ _Charles R Greathouse IV_, Jul 25 2013

%K nonn,base,easy

%O 1,1

%A _N. J. A. Sloane_ and _Vincenzo Librandi_, Sep 04 2010

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Last modified January 28 03:20 EST 2022. Contains 350654 sequences. (Running on oeis4.)