id:A079311 - OEIS Search Results

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Integer part of length of diagonal of integral rectangle with area n and smallest semiperimeter.

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1, 2, 3, 2, 5, 3, 7, 4, 4, 5, 11, 5, 13, 7, 5, 5, 17, 6, 19, 6, 7, 11, 23, 7, 7, 13, 9, 8, 29, 7, 31, 8, 11, 17, 8, 8, 37, 19, 13, 9, 41, 9, 43, 11, 10, 23, 47, 10, 9, 11, 17, 13, 53, 10, 12, 10, 19, 29, 59, 11, 61, 31, 11, 11, 13, 12, 67, 17, 23, 12, 71, 12, 73, 37, 15, 19, 13, 14, 79 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`n<=a(n) and for n>1: a(n)=n iff n is prime.`
	FORMULA	`a(n) = floor(SquareRoot(A033676(n)^2 + A033677(n)^2)).`
	CROSSREFS	`Cf. A063655.` `Sequence in context: A116548 A117818 A073890 this_sequence A060474 A065988 A075105` `Adjacent sequences: A079308 A079309 A079310 this_sequence A079312 A079313 A079314`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 11 2003`

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

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