Numbers m such that Sum_{i=1..m} omega(i)^2 is divisible by m, where omega is A001221.

Terms

a(0) =1a(1) =20a(2) =68a(3) =903a(4) =3876a(5) =3890a(6) =19096a(7) =19122a(8) =19127a(9) =110990a(10) =111004a(11) =111007a(12) =111010a(13) =111013a(14) =774276a(15) =774277a(16) =774278a(17) =774279a(18) =774303a(19) =774313a(20) =774314a(21) =774315a(22) =6615593a(23) =70607550a(24) =70607559a(25) =959878582a(26) =959878737a(27) =959878753a(28) =959878836a(29) =959878846