id:A058770 - OEIS Search Results

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Numbers n such that n * (1+i)^n + 1 is a Gaussian prime.

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1, 2, 3, 5, 9, 19, 20, 29, 30, 68, 142, 143, 150, 159, 160, 198, 468, 782, 858, 1100, 1137, 3337, 3638, 3909, 4845, 16895, 21768, 30349, 42692, 48470, 65208 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Index entries for Gaussian integers and primes`
	MATHEMATICA	`Do[ If[ PrimeQ[ n * (1 + I)^n + 1], Print[n] ], {n, 1, 4000} ]`
	CROSSREFS	`Sequence in context: A130581 A051236 A003218 this_sequence A049910 A077643 A123389` `Adjacent sequences: A058767 A058768 A058769 this_sequence A058771 A058772 A058773`
	KEYWORD	`nonn,hard`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 02 2001`

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

AT&T Labs Research