Number of binary words of length n (beginning 0) with autocorrelation function 2^(n-1)+3.

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =3a(6) =6a(7) =11a(8) =23a(9) =44a(10) =91a(11) =179a(12) =364a(13) =723a(14) =1457a(15) =2902a(16) =5827a(17) =11633a(18) =23310a(19) =46573a(20) =93237a(21) =186386a(22) =372951a(23) =745717a(24) =1491798a(25) =2983237a(26) =5967197a(27) =11933660a(28) =23868777a(29) =47736109