a(n) = Sum_{k=0..n} 6^k*A111146(n,k).
A113331
a(n) = Sum_{k=0..n} 6^k*A111146(n,k).
Terms
- a(0) =1a(1) =6a(2) =72a(3) =900a(4) =11520a(5) =149904a(6) =1976400a(7) =26363232a(8) =355648320a(9) =4854292416a(10) =67114780416a(11) =941774874624
External references
- oeis: A113331