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

A045695

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

Terms

    a(0) =0a(1) =1a(2) =2a(3) =8a(4) =22a(5) =70a(6) =202a(7) =622a(8) =1844a(9) =5576a(10) =16658a(11) =50114a(12) =150140a(13) =450824a(14) =1351850a(15) =4056794a(16) =12168538a(17) =36509302a(18) =109522330a(19) =328578142a(20) =985717768a(21) =2957186620a(22) =8871509746a(23) =26614629466a(24) =79843738258a(25) =239531515054a(26) =718594094338

External references