A171043 In the sequence of prime numbers, replace all the '8' digits with '2' and vice versa.

8, 3, 5, 7, 11, 13, 17, 19, 83, 89, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 23, 29, 97, 101, 103, 107, 109, 113, 187, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 121, 191, 193, 197, 199, 811, 883, 887, 889, 833, 839, 841, 851, 857, 863

Offset

1,1

Links

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

Mathematica

FromDigits[IntegerDigits[#]/.{8->p, 2->q}/.{p->2, q->8}]&/@ Prime[ Range[60]] (* Harvey P. Dale, Nov 30 2011 *)

Prog

(PARI) a(n)=my(v=[0, 1, 8, 3, 4, 5, 6, 7, 2, 9]); subst(Pol(apply(k->v[k+1], digits(prime(n)))), 'x, 10) \\ Charles R Greathouse IV, Jul 26 2013

Crossrefs

Sequence in context: A019728 A265183 A113476 * A124599 A365959 A005601

Adjacent sequences: A171040 A171041 A171042 * A171044 A171045 A171046

Keyword

nonn,base,easy

Author

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

Status

approved