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A087459 Values (X + Y - Z) sorted on Z, then on Y, where (X,Y,Z) is a primitive Pythagorean triple with X<Y<Z. 2
2, 4, 6, 6, 12, 10, 8, 20, 10, 24, 14, 30, 28, 12, 30, 40, 18, 42, 14, 36, 56, 22, 16, 42, 60, 70, 44, 18, 72, 48, 70, 26, 84, 66, 90, 20, 52, 80, 88, 30, 78, 22, 60, 90, 110, 112, 60, 126, 104, 24, 66, 132, 34, 126, 130, 144, 68, 26, 154, 120, 110, 140, 156, 38, 102, 28 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Eric Weisstein's World of Mathematics, Pythagorean Triple.

FORMULA

a(n) = A046086(n) + A046087(n) - A020882(n) = 2*A014498(n).

a(n) = sqrt{2*A118961(n)*A118962(n)}. - Lekraj Beedassy (blekraj(AT)yahoo.com), May 11 2006

CROSSREFS

For ordered values of (X + Y - Z) see A020887.

Cf. A046086, A046087, A020882, A014498.

Sequence in context: A073353 A066820 A141677 * A123258 A104968 A142473

Adjacent sequences:  A087456 A087457 A087458 * A087460 A087461 A087462

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), Oct 23 2003

EXTENSIONS

Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 25 2003

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.