OFFSET
1,9
LINKS
Eric Weisstein's World of Mathematics, Heronian Triangle
Wikipedia, Heronian triangle
Wikipedia, Integer Triangle
FORMULA
EXAMPLE
a(1) = 1; There is one Heronian triangle with perimeter A335101(1) = 12 whose middle side length is a square, [3,4,5].
CROSSREFS
KEYWORD
nonn
AUTHOR
Wesley Ivan Hurt, May 26 2020
STATUS
approved