id:A087060 - OEIS Search Results

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Difference between 2 * n^2 and the nearest square number.

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6

1, 1, 2, 4, 1, 8, 2, 7, 7, 4, 14, 1, 14, 8, 9, 17, 2, 23, 7, 16, 18, 7, 31, 4, 25, 17, 14, 32, 1, 36, 14, 23, 31, 8, 49, 9, 34, 28, 17, 49, 2, 47, 23, 28, 46, 7, 62, 16, 41, 41, 18, 68, 7, 56, 34, 31, 63, 4, 73, 25, 46, 56, 17, 89, 14, 63, 47, 32, 82, 1, 82, 36, 49, 73, 14, 103, 23, 68 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`A087060(n) = min [A087056(n), A087059(n)] = min [2n^2 - (floor[nsqrt(2)])^2, (1 + floor[nsqrt(2)])^2 - 2n^2]`
	EXAMPLE	`A087060(10) = 4 because the difference between 2*10^2 = 200 and the nearest square number (196) is 4.`
	CROSSREFS	`Cf. A001951, A087055, A087056, A087057, A087058, A087059.` `Sequence in context: A121531 A127554 A103324 this_sequence A065278 A112931 A121685` `Adjacent sequences: A087057 A087058 A087059 this_sequence A087061 A087062 A087063`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jens Voss (jens(AT)voss-ahrensburg.de), Aug 07 2003`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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