A171033 In the sequence of prime numbers, replace all the '6' digits with '5' and vice versa.

2, 3, 6, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 63, 69, 51, 57, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 161, 167, 153, 157, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 261, 267, 253

Offset

1,1

Links

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

Mathematica

FromDigits[IntegerDigits[#]/.{6->p, 5->q}/.{p->5, q->6}]&/@Prime[Range[100]] (* Vincenzo Librandi, Apr 07 2013 *)

Prog

(PARI) a(n)=my(v=[0, 1, 2, 3, 4, 6, 5, 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: A056825 A070757 A056956 * A269983 A323066 A002256

Adjacent sequences: A171030 A171031 A171032 * A171034 A171035 A171036

Keyword

nonn,base,easy

Author

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

Status

approved