a(n) = 10*a(n-1) - a(n-2) for n >= 2 with a(0) = 1 and a(1) = 3.

A140780

a(n) = 10*a(n-1) - a(n-2) for n >= 2 with a(0) = 1 and a(1) = 3.

Terms

    a(0) =1a(1) =3a(2) =29a(3) =287a(4) =2841a(5) =28123a(6) =278389a(7) =2755767a(8) =27279281a(9) =270037043a(10) =2673091149a(11) =26460874447a(12) =261935653321

External references