id:A104995 - OEIS Search Results

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Smallest prime such that n*(k(n)^2)+n*k(n)+1 is a prime > (n-1)*((k(n-1)^2)+(n-1)*k(n-1)+1 with k(n)>1 or 0 if n=4 as no prime possible.

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7, 13, 19, 0, 31, 37, 43, 97, 109, 421, 463, 673, 937, 1009, 2341, 3361, 3571, 6841, 8779, 9241, 10627, 16633, 17389, 19489, 21751, 22621, 25111, 26041, 34511, 42181, 45943, 49921, 51481, 58549, 60271, 68113, 94351, 104729, 115831, 118801, 130873 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`sequence of k(n) given in A104994`
	EXAMPLE	`12^2+12+1=7 prime with k(1)=2` `22^2+22+1=13 prime > 7 with k(2)=2` `32^2+32+1=19 prime > 13 with k(3)=2` `52^2+52+1=31 prime > 19 with k(5)=2`
	CROSSREFS	`Cf. A104994.` `Sequence in context: A029477 A019378 A005762 this_sequence A107744 A160007 A024613` `Adjacent sequences: A104992 A104993 A104994 this_sequence A104996 A104997 A104998`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Mar 31 2005`

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

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