A171042 - OEIS

A171042

In the sequence of prime numbers, replace all the '8' digits with '1' and vice versa.

2, 3, 5, 7, 88, 83, 87, 89, 23, 29, 38, 37, 48, 43, 47, 53, 59, 68, 67, 78, 73, 79, 13, 19, 97, 808, 803, 807, 809, 883, 827, 838, 837, 839, 849, 858, 857, 863, 867, 873, 879, 818, 898, 893, 897, 899, 288, 223, 227, 229, 233, 239, 248, 258, 257, 263

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

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

MATHEMATICA

FromDigits[IntegerDigits[#]/.{8->p, 1->q}/.{p->1, q->8}]&/@Prime[Range[100]] (* Vincenzo Librandi, Mar 11 2013 *)

PROG

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

CROSSREFS

Sequence in context: A264576 A356981 A070275 * A068827 A289755 A318202

Adjacent sequences: A171039 A171040 A171041 * A171043 A171044 A171045

KEYWORD

nonn,base,easy

AUTHOR

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

STATUS

approved