OFFSET

1,1

COMMENTS

Kurz's paper reports the first 10 values in a table on page 193, (erroneously labeling them as areas), but the last two values are incorrect since correspond to n-tuples which are not minimal.

LINKS

Sascha Kurz, On the generation of Heronian triangles, Serdica Journal of Computing Vol. 2 (2008), 181-196.

EXAMPLE

The first 3 entries and corresponding triangles:

a(1) = 4*A = 4*6 = 24, p = 12, T = (3, 4, 5);

a(2) = 4*A = 4*210 = 840, p = 70, T = (17, 25, 28), (20, 21, 29);

a(3) = 4*A = 4*420 = 1680, p = 98, T = (24, 37, 37), (25, 34, 39), (29, 29, 40).

CROSSREFS

KEYWORD

nonn,hard,more

AUTHOR

Peter Luschny, Jan 21 2012

EXTENSIONS

Name edited, a(9)-a(10) corrected and a(11)-a(12) added by Giovanni Resta, Apr 21 2020

STATUS

approved