Values of n at which Golay-Rudin-Shapiro sequence A020985 is negative.

Terms

a(0) =3a(1) =6a(2) =11a(3) =12a(4) =13a(5) =15a(6) =19a(7) =22a(8) =24a(9) =25a(10) =26a(11) =30a(12) =35a(13) =38a(14) =43a(15) =44a(16) =45a(17) =47a(18) =48a(19) =49a(20) =50a(21) =52a(22) =53a(23) =55a(24) =59a(25) =60a(26) =61a(27) =63a(28) =67a(29) =70