id:A071610 - OEIS Search Results

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Integer radii of the spheres around (0,0,0) that contain record numbers of lattice points.

+0
3

1, 2, 3, 3, 4, 6, 7, 9, 10, 11, 13, 14, 17, 18, 19, 22, 25, 26, 27, 29, 30, 31, 34, 34, 34, 36, 37, 41, 43, 44, 47, 52, 55, 56, 59, 59, 60, 66, 66, 70, 74, 75, 80, 86, 89, 90, 91, 94, 100, 103, 104, 109, 115, 115, 119, 125, 134, 141, 146, 153, 153, 157, 168, 171 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Multiple entries indicate that there is more than one covered sphere with an increase in the number of hit lattice points within a radius difference of 1.`
	FORMULA	`a(n) = Ceiling ( A071609(n)^(1/2) )`
	PROGRAM	`(FORTRAN) see program given in A71609`
	CROSSREFS	`Cf. A071342-A071344 A071609 A071611.` `Sequence in context: A036018 A101195 A123552 this_sequence A117275 A081230 A036021` `Adjacent sequences: A071607 A071608 A071609 this_sequence A071611 A071612 A071613`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), May 25 2002`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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