1,2

(PARI) an=0; for(i=1, 10^5, an=bitxor(an, i^2); issquare(an)&print1(i", "))

A145828 = A145768 intersect A000290 = { A145768(a(n)) }.

Sequence in context: A160777 A063189 A004472 this_sequence A116025 A020939 A073457

Adjacent sequences: A145824 A145825 A145826 this_sequence A145828 A145829 A145830

easy,nonn

M. F. Hasler (MHasler(AT)univ-ag.fr), Oct 20 2008