Barker sequence of length 13.A011758Barker sequence of length 13.Terms a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =-1a(6) =-1a(7) =1a(8) =1a(9) =-1a(10) =1a(11) =-1a(12) =1External referencesoeis: A011758