%I A006606 M0770
%S A006606 1,2,3,6,10,20,36,72,135,272,528,1048,2080,4160,8242,16500,32895,65750,
%T A006606 131328,262612,524733
%N A006606 Nonperiodic autocorrelation functions of length n.
%D A006606 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006606 E. G. Whitehead, Jr., Autocorrelation of (+1,-1) matrices, pp. 329-336 
               of Combinatorial Mathematics (Canberra, 1977), Lect. Notes Math. 
               686, 1978.
%D A006606 E. G. Whitehead, Jr., Autocorrelation of (+1,-1) matrices, pp. 329-336 
               of Combinatorial Mathematics (Canberra, 1977), Lect. Notes Math. 
               686, 1978. [From Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009]
%H A006606 <a href="http://www.springerlink.com/content/63k1v22n1k2036k6/fulltext.pdf">
               </a> [From Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009]
%Y A006606 Sequence in context: A047131 A008927 A052525 this_sequence A120421 A005418 
               A002215
%Y A006606 Adjacent sequences: A006603 A006604 A006605 this_sequence A006607 A006608 
               A006609
%K A006606 nonn
%O A006606 1,2
%A A006606 N. J. A. Sloane (njas(AT)research.att.com).
%E A006606 More terms from a(16) Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009