a(n) = n!^2 * [x^n] polylog(2,x)^4.

A370226

a(n) = n!^2 * [x^n] polylog(2,x)^4.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =576a(5) =14400a(6) =424800a(7) =16405200a(8) =827179584a(9) =53370793728

External references