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A118492 Number of Gaussian primes with floor(abs(p)) = n. +0
1
1, 1, 2, 1, 1, 2, 3, 1, 2, 3, 2, 2, 3, 1, 3, 4, 3, 3, 4, 4, 3, 2, 4, 5, 4, 3, 5, 4, 4, 4, 6, 4, 6, 5, 5, 4, 5, 4, 3, 7, 7, 3, 8, 5, 6, 5, 9, 8, 5, 4, 8, 9, 6, 5, 7, 7, 6, 8, 8, 8, 7, 6, 8, 7, 9, 8, 8, 7, 8, 9, 6, 10, 8, 7, 11, 9, 6, 10, 13, 8, 10, 10, 8, 8, 10, 12, 10, 11, 11, 9, 10, 10, 11, 10, 11, 11 (list; graph; listen)
OFFSET

1,3

LINKS

Index entries for Gaussian integers and primes

FORMULA

a(n) = A077766(n) + 1 if n is 1 or a prime = 3 (mod 4), A077766(n) otherwise.

CROSSREFS

Cf. A077766.

Sequence in context: A105810 A063726 A112757 this_sequence A079246 A070990 A097868

Adjacent sequences: A118489 A118490 A118491 this_sequence A118493 A118494 A118495

KEYWORD

easy,nonn

AUTHOR

Frank Adams-Watters (FrankTAW(AT)Netscape.net), May 05 2006

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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