id:A124206 - OEIS Search Results

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Numbers n such that 1 + n + n^3 + n^5 + n^7 + n^9 + n^11 + n^13 + n^15 + n^17 + n^19 + n^21 + n^23 + n^25 + n^27 + n^29 + n^31 + n^33 + n^35 + n^37 + n^39 + n^41 + n^43 + n^45 + n^47 + n^49 + n^51 is prime.

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12, 140, 212, 315, 455, 512, 560, 660, 687, 807, 947, 1005, 1007, 1097, 1128, 1152, 1182, 1301, 1427, 1442, 1491, 1571, 1755, 1787, 1860, 2258, 2346, 2400 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Do[If[PrimeQ[1+n+n^3+n^5+n^7+n^9+n^11+n^13+n^15+n^17+n^19+n^21+n^23+n^25+n^27+n^29+n^31+n^33+n^35+n^37+n^39+n^41+n^43+n^45+n^47+n^49+n^51], Print[n]], {n, 1, 2400}]`
	CROSSREFS	`Cf. A049407.` `Sequence in context: A125469 A113366 A003379 this_sequence A061636 A135326 A056340` `Adjacent sequences: A124203 A124204 A124205 this_sequence A124207 A124208 A124209`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Dec 13 2006`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research