Weight distribution of [137, 69, 21] binary quadratic-residue (or QR) code.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =0a(16) =0a(17) =0a(18) =0a(19) =0a(20) =0a(21) =51238a(22) =270164a(23) =409904a(24) =1947044a(25) =4057118a(26) =17476816a(27) =99448300a(28) =390689750a(29) =1445284240