a(n) = ((4+sqrt(3))*(5+sqrt(3))^nv+v(4-sqrt(3))*(5-sqrt(3))^n)/2.
A162561
a(n) = ((4+sqrt(3))*(5+sqrt(3))^nv+v(4-sqrt(3))*(5-sqrt(3))^n)/2.
Terms
- a(0) =4a(1) =23a(2) =142a(3) =914a(4) =6016a(5) =40052a(6) =268168a(7) =1800536a(8) =12105664a(9) =81444848a(10) =548123872a(11) =3689452064a(12) =24835795456a(13) =167190009152
External references
- oeis: A162561