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A036697 a(n)=number of Gaussian integers z=a+bi satisfying n-1<|z|<=n, a>=0, b>=0. 0
1, 2, 3, 5, 6, 9, 9, 10, 13, 15, 17, 16, 17, 23, 22, 25, 23, 27, 28, 31, 33, 30, 37, 35, 36, 43, 41, 43, 42, 45, 49, 46, 53, 51, 55, 58, 51, 61, 56, 67, 63, 60, 67, 67, 73, 72, 67, 75, 74, 79, 81, 83, 82, 79, 85, 84, 93, 87, 93, 90, 95 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..60.

Index entries for Gaussian integers and primes

CROSSREFS

Sequence in context: A121048 A075389 A053784 * A131292 A276476 A069880

Adjacent sequences:  A036694 A036695 A036696 * A036698 A036699 A036700

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified March 23 04:46 EDT 2019. Contains 321422 sequences. (Running on oeis4.)