id:A036698 - OEIS Search Results

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a(n)=number of Gaussian integers z=a+bi satisfying |z|<=n, a>0, b>=0.

+0
1

0, 1, 3, 7, 12, 20, 28, 37, 49, 63, 79, 94, 110, 132, 153, 177, 199, 225, 252, 282, 314, 343, 379, 413, 448, 490, 530, 572, 613, 657, 705, 750, 802, 852, 906, 963, 1013, 1073, 1128, 1194, 1256, 1315, 1381, 1447, 1519, 1590, 1656 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`Index entries for Gaussian integers and primes`
	CROSSREFS	`A000603(n) - n - 1.` `Adjacent sequences: A036695 A036696 A036697 this_sequence A036699 A036700 A036701` `Sequence in context: A011899 A002498 A091369 this_sequence A132273 A130050 A002049`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

AT&T Labs Research