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 A088543 Decimal expansion of sqrt(15)/2. 6
 1, 9, 3, 6, 4, 9, 1, 6, 7, 3, 1, 0, 3, 7, 0, 8, 4, 4, 2, 5, 8, 9, 6, 3, 2, 6, 9, 9, 8, 9, 1, 1, 9, 9, 8, 0, 5, 4, 1, 6, 4, 6, 0, 8, 5, 2, 6, 4, 5, 7, 9, 5, 4, 1, 3, 2, 9, 3, 7, 8, 6, 8, 8, 3, 0, 5, 6, 7, 4, 1, 5, 4, 5, 9, 6, 8, 4, 8, 9, 5, 1, 6, 7, 5, 9, 6, 4, 3, 6, 8, 8, 4, 2, 9, 3, 3, 6, 7, 5, 8, 9, 5, 8, 1, 5 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This is the ratio of the base of an isosceles triangle to its height when the other two sides are each equal to twice the base. Exradius opposite the side of length 3 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. - Rick L. Shepherd, May 14 2008 LINKS Eric Weisstein's World of Mathematics, Exradius. FORMULA sqrt(15)/2 = A010472/2 = A140249/3. - Rick L. Shepherd, May 14 2008 EXAMPLE 1.93649167310370844258963269989119980541646085264579541329378688305674154596... CROSSREFS Cf. A010527. Cf. A140239, A140246, A140247, A140248, A140249, A010472. Sequence in context: A169849 A182547 A019737 * A256854 A182552 A021985 Adjacent sequences:  A088540 A088541 A088542 * A088544 A088545 A088546 KEYWORD cons,nonn AUTHOR Christopher M. Tomaszewski (cmt1288(AT)comcast.net), Nov 16 2003 EXTENSIONS More terms from Rick L. Shepherd, May 14 2008 STATUS approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)