Number of Gray code sequences of length 2*n where numbers are between 0 and 2*n-1.

A350784

Number of Gray code sequences of length 2*n where numbers are between 0 and 2*n-1.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =12a(4) =8a(5) =44a(6) =192a(7) =2688a(8) =1344a(9) =6896a(10) =24228a(11) =316848a(12) =812624a(13) =9158880a(14) =75652512a(15) =1813091520a(16) =725236608a(17) =3568226496a(18) =11152502816a(19) =137997707616a(20) =309878131724

External references