A171044 In the sequence of prime numbers, replace all the '8' digits with '3' and vice versa.

2, 8, 5, 7, 11, 18, 17, 19, 28, 29, 81, 87, 41, 48, 47, 58, 59, 61, 67, 71, 78, 79, 38, 39, 97, 101, 108, 107, 109, 118, 127, 181, 187, 189, 149, 151, 157, 168, 167, 178, 179, 131, 191, 198, 197, 199, 211, 228, 227, 229, 288, 289, 241, 251, 257, 268

Offset

1,1

Links

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

Mathematica

FromDigits[IntegerDigits[#]/.{8->p, 3->q}/.{p->3, q->8}]&/@Prime[Range[100]] (° Vincenzo Librandi, Mar 11 2013 *)

Prog

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

Crossrefs

Sequence in context: A122387 A021039 A247670 * A271886 A182528 A185583

Adjacent sequences: A171041 A171042 A171043 * A171045 A171046 A171047

Keyword

nonn,base,easy

Author

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

Status

approved