OFFSET
1,2
PROG
(PARI) a(n) = my(k=1, m=n^n); while(k*(k+1)/2%m!=0, k++); k*(k+1)/(2*m);
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Seiichi Manyama, Mar 29 2021
EXTENSIONS
More terms from David A. Corneth, Mar 29 2021
STATUS
approved