id:A090525 - OEIS Search Results

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Least number k such that floor[(n^n)/k] is prime, or 0 if no such number exists.

+0
4

2, 2, 11, 9, 11, 20, 10, 42, 13, 16, 57, 7, 35, 41, 53, 35, 171, 18, 141, 45, 19, 55, 212, 236, 94, 265, 13, 76, 26, 9, 13, 21, 160, 21, 21, 24, 378, 100, 66, 52, 75, 54, 214, 6, 678, 193, 137, 123, 138, 59, 605, 87, 165, 109, 417, 403, 100, 57, 778, 719, 79, 12, 83, 450 (list; graph; listen)

	OFFSET	`2,1`
	COMMENT	`Conjecture: No term is zero.`
	PROGRAM	`(PARI) a(n)=for(i=1, 1000, if(isprime(floor((n^n)/i)), print1(i, ", "); break()))`
	CROSSREFS	`Cf. A090526, A090527, A090528.` `Sequence in context: A027623 A037234 A141651 this_sequence A126806 A121871 A151365` `Adjacent sequences: A090522 A090523 A090524 this_sequence A090526 A090527 A090528`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 07 2003`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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