

A108836


Primes such that the outer 2 digits are n and n1 and all inner digits are 8, where 0 < n < 9.


0



281, 887, 8887, 48883, 888887, 888888887, 48888888883, 888888888887, 2888888888881, 4888888888883, 48888888888883, 2888888888888888888888888881, 48888888888888888888888888888888888888883
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..13.


PROG

(PARI) n10np1(n, d) = { local(x, y, k); for(x=1, n, for(k=1, 8, y=10^(x+1)*k+floor(10^x*d/9)*10+k1; if(isprime(y), print1(y", ")) ) ) }


CROSSREFS

Sequence in context: A163184 A122710 A161191 * A295983 A264150 A289543
Adjacent sequences: A108833 A108834 A108835 * A108837 A108838 A108839


KEYWORD

easy,nonn,base


AUTHOR

Cino Hilliard, Jul 11 2005


STATUS

approved



