a(n) = ((6 + sqrt(3))^n - (6 - sqrt(3))^n)/(2*sqrt(3)).
A153597
a(n) = ((6 + sqrt(3))^n - (6 - sqrt(3))^n)/(2*sqrt(3)).
Terms
- a(0) =1a(1) =12a(2) =111a(3) =936a(4) =7569a(5) =59940a(6) =469503a(7) =3656016a(8) =28378593a(9) =219894588a(10) =1702241487a(11) =13170376440a(12) =101870548209a(13) =787824155988
External references
- oeis: A153597