A103112 - OEIS

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A103112

Smallest natural number m such that n^n^n - m is a prime.

3, 26, 569, 10978, 106843 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,1`
	EXAMPLE	`a(5)=10978 because 5^5^5 - 10978 is a prime and 5^5^5 - k is composite for 0<k<10978.`
	CROSSREFS	`Cf. A103111, A074967, A074966.` `Sequence in context: A089041 A059511 A112676 * A064941 A112612 A129430` `Adjacent sequences: A103109 A103110 A103111 * A103113 A103114 A103115`
	KEYWORD	`hard,more,nonn`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Mar 04 2005`
	EXTENSIONS	`a(6) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Mar 06 2008`

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Last modified February 14 17:44 EST 2012. Contains 205651 sequences.