a(n) = (4n-2)*a(n-1)+a(n-2) with a(0)=1 and a(1)=2.
A079165
a(n) = (4n-2)*a(n-1)+a(n-2) with a(0)=1 and a(1)=2.
Terms
- a(0) =1a(1) =2a(2) =13a(3) =132a(4) =1861a(5) =33630a(6) =741721a(7) =19318376a(8) =580293001a(9) =19749280410a(10) =751052948581
External references
- oeis: A079165