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 A020887 Ordered set of a + b - c as (a,b,c) runs through all primitive Pythagorean triples with a
 2, 4, 6, 6, 8, 10, 10, 12, 12, 14, 14, 16, 18, 18, 20, 20, 22, 22, 24, 24, 26, 26, 28, 28, 30, 30, 30, 30, 32, 34, 34, 36, 36, 38, 38, 40, 40, 42, 42, 42, 42, 44, 44, 46, 46, 48, 48, 50, 50, 52, 52, 54, 54, 56, 56, 58, 58, 60, 60, 60, 60, 62, 62, 64, 66, 66, 66, 66, 68, 68, 70 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Also called "excess" of primitive Pythagorean triangles and corresponds to incircle's diameter. - Lekraj Beedassy, Dec 01 2003 LINKS Ray Chandler, Table of n, a(n) for n = 1..10000 D. McCullough, The Height and Excess of Pythagorean Triples FORMULA a(n) = 2*A020888(n). CROSSREFS For values ordered by hypotenuse, see A087459. Sequence in context: A342597 A035280 A244367 * A050827 A082990 A099188 Adjacent sequences: A020884 A020885 A020886 * A020888 A020889 A020890 KEYWORD nonn AUTHOR Clark Kimberling EXTENSIONS Offset corrected to 1 by Ray Chandler, Jan 23 2020 STATUS approved

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Last modified April 19 08:36 EDT 2024. Contains 371782 sequences. (Running on oeis4.)