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

2, 6, 5, 7, 11, 16, 17, 19, 26, 29, 61, 67, 41, 46, 47, 56, 59, 31, 37, 71, 76, 79, 86, 89, 97, 101, 106, 107, 109, 116, 127, 161, 167, 169, 149, 151, 157, 136, 137, 176, 179, 181, 191, 196, 197, 199, 211, 226, 227, 229, 266, 269, 241, 251, 257, 236

Offset

1,1

Links

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

Mathematica

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

Prog

(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

Crossrefs

Sequence in context: A188594 A107822 A094514 * A199159 A175293 A021083

Adjacent sequences: A171028 A171029 A171030 * A171032 A171033 A171034

Keyword

nonn,base,easy

Author

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

Status

approved