a(n) = ceiling((3-sqrt(5))*10^(2*n+1)).

A262353

a(n) = ceiling((3-sqrt(5))*10^(2*n+1)).

Terms

    a(0) =8a(1) =764a(2) =76394a(3) =7639321a(4) =763932023a(5) =76393202251

External references