a(n) = [y^n*x^n/n] log( Sum_{m>=0} (1 + m*y + y^2)^m * x^m ) for n >= 1.
A360348
a(n) = [y^n*x^n/n] log( Sum_{m>=0} (1 + m*y + y^2)^m * x^m ) for n >= 1.
Terms
- a(0) =1a(1) =9a(2) =100a(3) =1381a(4) =22771a(5) =435138a(6) =9442049a(7) =229265109a(8) =6160375990a(9) =181559237499
External references
- oeis: A360348