Convolution of A006068 (inverse of Gray code) with itself: a(n) = Sum_{k=1..n+1} A006068(k) * A006068(1+n-k).

A268721

Convolution of A006068 (inverse of Gray code) with itself: a(n) = Sum_{k=1..n+1} A006068(k) * A006068(1+n-k).

Terms

    a(0) =0a(1) =1a(2) =6a(3) =13a(4) =26a(5) =58a(6) =72a(7) =107a(8) =160a(9) =230a(10) =286a(11) =440a(12) =558a(13) =599a(14) =696a(15) =851a(16) =1032a(17) =1298a(18) =1510a(19) =1826a(20) =2122a(21) =2353a(22) =2624a(23) =3294a(24) =3884a(25) =4335a(26) =4870a(27) =5001a(28) =5242a(29) =5722

External references