id:A096214 - OEIS Search Results

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First prime in primes of the form 10^n + 10^(n-k) - 1.

+0
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109, 1009, 10009, 1000099, 1000009999, 1000000999999, 10000000999, 1000000009, 1000000000999999999, 10000000000099, 100000000000099, 100000000000009999, 10000000000000099, 100000000000000099, 1000000000000000009 (list; graph; listen)

	OFFSET	`1,1`
	PROGRAM	`(PARI) f(n, z) = for(x=z, n, y=10^x+10^(x-z)-1; if(ispseudoprime(y), print1(y", ")))`
	CROSSREFS	`Sequence in context: A103734 A103565 A061699 this_sequence A059936 A061724 A125044` `Adjacent sequences: A096211 A096212 A096213 this_sequence A096215 A096216 A096217`
	KEYWORD	`nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Jul 28 2004`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research