OFFSET
1,13
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Heronian Triangle.
EXAMPLE
a(17)=3 as there are 3 primitive Heronian triangles with greatest side length of 17. They are (9, 10, 17), (8, 15, 17) and (16, 17, 17).
MATHEMATICA
CROSSREFS
KEYWORD
nonn
AUTHOR
Frank M Jackson, Mar 13 2014
STATUS
approved