a(0)=1, for n>0: a(n) = 6*13^(n-1) - (1/2)*Sum_{i=1..n-1} a(i)*a(n-i).
A085364
a(0)=1, for n>0: a(n) = 6*13^(n-1) - (1/2)*Sum_{i=1..n-1} a(i)*a(n-i).
Terms
- a(0) =1a(1) =6a(2) =60a(3) =654a(4) =7458a(5) =87378a(6) =1042152a(7) =12587730a(8) =153479508a(9) =1885010946a(10) =23285957604a(11) =289018502682
External references
- oeis: A085364