a(n) = 3*b_3(n)+2, where b_3 lists the zeros of the sequence A261303: u(n+1)=abs(u(n)-gcd(u(n),3*n+2)), u(1)=1.
A186255
a(n) = 3*b_3(n)+2, where b_3 lists the zeros of the sequence A261303: u(n+1)=abs(u(n)-gcd(u(n),3*n+2)), u(1)=1.
Terms
- a(0) =8a(1) =17a(2) =71a(3) =269a(4) =1013a(5) =4007a(6) =15923a(7) =63521a(8) =253949a(9) =1014317a(10) =4056893a(11) =16225589a(12) =64902359a(13) =259609439a(14) =1038437759a(15) =4153750883a(16) =16614561281a(17) =66458241569a(18) =265832966279
External references
- oeis: A186255