250632domain: NAppears in sequencesNumbers n such that both ror(n) and rol(n) are squares, where ror(x)=A038572(x) is x rotated one binary place to the right, rol(x)=A006257(x) is x rotated one binary place to the left.at n=16A274524Numbers n such that 2^n == 1 (mod sigma(n)).at n=37A278836