id:A078201 - OEIS Search Results

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a(n) = smallest prime of the form n^k + k^n, or 0 if no such prime exists.

+0
2

2, 3, 17, 5, 59604644783353249, 7, 4318114567396436564035293097707729426477458833, 205688069665150755269371147819668813122841983204711281293004769, 593, 11 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`If p is a prime then a(p-1) = p, with k = 1.`
	EXAMPLE	`a(3) = 3^2 + 2^3 = 17, a(4) = 5 = 4^1 + 1^4.`
	CROSSREFS	`Sequence in context: A029913 A029914 A073125 this_sequence A090913 A135931 A051074` `Adjacent sequences: A078198 A078199 A078200 this_sequence A078202 A078203 A078204`
	KEYWORD	`hard,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 21 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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