Almost perfect sequences with θ=2.
Leung, Ka Hin
Ma, Siu Lun
Tay, Kian Boon
Date of Issue1998
School of Physical and Mathematical Sciences
Almost perfect sequences with θ=2 are studied in this paper. Recently Arasu, Ma and Voss  studied such sequences and they could only obtain sequences having periods 8, 12 and 28. In this paper, we prove that no other almost perfect sequences exist for the case θ=2.
Archiv der mathematik
© 1998 Birkhäuser Verlag, Basel. This is the author created version of a work that has been peer reviewed and accepted for publication by Archiv der Mathematik, Birkhäuser Verlag, Basel. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1007/s000130050174].