a(n) = 9*a(n-1) - 6*a(n-2), with a(0)=0, a(1)=1.
A190983
a(n) = 9*a(n-1) - 6*a(n-2), with a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =9a(3) =75a(4) =621a(5) =5139a(6) =42525a(7) =351891a(8) =2911869a(9) =24095475a(10) =199388061a(11) =1649919699a(12) =13652948925a(13) =112977022131a(14) =934875505629
External references
- oeis: A190983