OFFSET
1,1
COMMENTS
All terms are congruent to 1 (mod 8).
FORMULA
a(n) = A008846(n)^2.
EXAMPLE
169 is a term because 169 = 13^2 and (119,120,169) is a primitive Pythagorean triangle.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alexandru Petrescu, Feb 01 2023
STATUS
approved