a(n) = A033148(n) / 2^floor(n/4).

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =1a(12) =1a(13) =0a(14) =0a(15) =4a(16) =8a(17) =0a(18) =0a(19) =15a(20) =22a(21) =0a(22) =0a(23) =52a(24) =51a(25) =0a(26) =0a(27) =257a(28) =342a(29) =0