A117814 a(n) = 1 if at least one of decimal digits of n is a prime, otherwise a(n)=0.

0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1

Offset

0,1

Comments

a(n) = 1 if n is a prime.

a(n) = 1 for almost all n. - Charles R Greathouse IV, Feb 26 2013

Links

Table of n, a(n) for n=0..85.

Mathematica

Table[If[Or@@PrimeQ[IntegerDigits[n]], 1, 0], {n, 0, 140}] (* Harvey P. Dale, Feb 26 2013 *)

Prog

(PARI) a(n)=#select(isprime, digits(n))>0 \\ Charles R Greathouse IV, Feb 26 2013

Crossrefs

Sequence in context: A156660 A155899 A284932 * A257000 A062301 A181712

Adjacent sequences: A117811 A117812 A117813 * A117815 A117816 A117817

Keyword

base,easy,nonn

Author

Giovanni Teofilatto, Apr 29 2006

Extensions

Corrected by Harvey P. Dale, Feb 26 2013

Status

approved