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A058770 Numbers n such that n * (1+i)^n + 1 is a Gaussian prime. 0
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; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..31.

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: A051236 A003218 A119002 * A049910 A077643 A123389

Adjacent sequences:  A058767 A058768 A058769 * A058771 A058772 A058773

KEYWORD

nonn,hard

AUTHOR

Robert G. Wilson v, Jan 02 2001

STATUS

approved

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Last modified February 19 14:28 EST 2018. Contains 299333 sequences. (Running on oeis4.)