A193825 Primes of the form 10^n-prime(n).

97, 99989, 9999999999999999999999999999999999999827, 999999999999999999999999999999999999999999999999999999999999999999653

Offset

1,1

Comments

Next term (n=586) is too large to be listed above. See A110066 for the numbers n which yield further terms of this sequence.

Links

Table of n, a(n) for n=1..4.

Formula

a(n)=10^A110066(n)-prime(A110066(n)).

Prog

(PARI) for(n=1, 999, ispseudoprime(t=10^n-prime(n)) && print1(t", "))

Crossrefs

Cf. A110065, A110066, A110067, A173837, A174176.

Sequence in context: A176135 A160489 A220982 * A338779 A209475 A186167

Adjacent sequences: A193822 A193823 A193824 * A193826 A193827 A193828

Keyword

nonn

Author

M. F. Hasler, Aug 06 2011

Status

approved