a(n) = n!*[x^n] (log(x+1) * Sum_{j=0..n} C(2*n,j)*x^j).
A098118
a(n) = n!*[x^n] (log(x+1) * Sum_{j=0..n} C(2*n,j)*x^j).
Terms
- a(0) =1a(1) =7a(2) =74a(3) =1066a(4) =19524a(5) =434568a(6) =11393808a(7) =343976400a(8) =11752855200a(9) =448372820160
External references
- oeis: A098118