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
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset corrected to 1 by Ray Chandler, Jan 23 2020
STATUS
approved