OFFSET
1,1
COMMENTS
In other words, integers n such that (1+2+3+...+n)^2 = x^3 + y^3 where x and y are positive integers, is soluble.
EXAMPLE
PROG
(PARI) isA003325(n) = for(k=1, sqrtnint(n\2, 3), ispower(n-k^3, 3) && return(1));
for(n=0, 1e7, if(isA003325((n*(n+1)/2)^2), print1(n, ", ")));
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Altug Alkan, Mar 06 2016
EXTENSIONS
a(6)-a(10) from Chai Wah Wu, Mar 08 2016
STATUS
approved