id:A053414 - OEIS Search Results

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Circle numbers (version 2): a(n)= number of points (i,j), i,j integers, contained in a circle of diameter n, centered at (0,1/2).

+0
10

0, 2, 2, 8, 12, 22, 26, 40, 48, 62, 78, 96, 108, 134, 154, 180, 196, 230, 250, 280, 312, 346, 378, 412, 452, 494, 526, 576, 612, 658, 698, 756, 800, 850, 906, 964, 1012, 1074, 1130, 1196, 1252, 1322, 1378, 1448, 1516, 1594, 1654, 1732, 1808, 1882, 1954 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(n)/(n/2)^2->Pi`
	CROSSREFS	`Cf. A053411, A053414, A053415, A053416, A053417.` `Sequence in context: A015620 A046690 A008828 this_sequence A014236 A087955 A026537` `Adjacent sequences: A053411 A053412 A053413 this_sequence A053415 A053416 A053417`
	KEYWORD	`easy,nonn`
	AUTHOR	`Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Jan 10 2000`

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

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