id:A088122 - OEIS Search Results

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Let f(n,x) = 1 + 2x + 3x^2 + 5x^3 + 7x^4 + ... + prime(n)*x^n; a(n)= smallest prime f(n,x), or 0 if no such prime exists.

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3, 17, 11, 10273, 29, 702337, 59, 358218449, 101, 144343444402281177689, 13269388801, 93810335233, 239, 1305289, 214201115363366099, 7339592775850735791497954599833793, 809672944130045028361241 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(4) = 10273. For x = 1,2,3,4,5 f(4,x) is composite. f(4,6) = 10273.`
	CROSSREFS	`Cf. A088123.` `Sequence in context: A093844 A033467 A096475 this_sequence A087964 A120448 A095422` `Adjacent sequences: A088119 A088120 A088121 this_sequence A088123 A088124 A088125`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 25 2003`
	EXTENSIONS	`More terms from Tom Mueller (muel4503(AT)uni-trier.de), May 04 2004`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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