id:A140249 - OEIS Search Results

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Decimal expansion of 3*sqrt(15)/2.

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12

5, 8, 0, 9, 4, 7, 5, 0, 1, 9, 3, 1, 1, 1, 2, 5, 3, 2, 7, 7, 6, 8, 8, 9, 8, 0, 9, 9, 6, 7, 3, 5, 9, 9, 4, 1, 6, 2, 4, 9, 3, 8, 2, 5, 5, 7, 9, 3, 7, 3, 8, 6, 2, 3, 9, 8, 8, 1, 3, 6, 0, 6, 4, 9, 1, 7, 0, 2, 2, 4, 6, 3, 7, 9, 0, 5, 4, 6, 8, 5, 5, 0, 2, 7, 8, 9, 3, 1, 0, 6, 5, 2, 8, 8, 0, 1, 0, 2, 7, 6, 8, 7, 4, 4, 5 (list; cons; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Exradius opposite the side of length 4 of the obtuse scalene triangle with sides of lengths 2, 3 and 4, the scalene triangle with least integer side lengths. See formulas in the Weisstein link.`
	LINKS	`Eric Weisstein's World of Mathematics, Exradius.`
	FORMULA	`3sqrt(15)/2 = 3A010472/2 = 2A140239 = 3A088543 = 5*A140248.`
	EXAMPLE	`5.80947501931112532776889809967359941624938255793738623988136064917022463790...`
	PROGRAM	`(PARI) 3*sqrt(15)/2`
	CROSSREFS	`Cf. A140239, A140240, A140241, A140242, A140243, A140244, A140245, A140246, A140247, A140248, A088543, A010472.` `Sequence in context: A011496 A153420 A141848 this_sequence A081564 A020797 A154856` `Adjacent sequences: A140246 A140247 A140248 this_sequence A140250 A140251 A140252`
	KEYWORD	`cons,nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 14 2008`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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