14471730domain: NAppears in sequencesRelated to sextic factorial numbers A008542.at n=5A034789A convolution triangle of numbers obtained from A034789.at n=15A092083a(n) = (1/n) * [x^n] 1/(1 - n^2*x)^(1/n), where [x^n] F(x) denotes the coefficient of x^n in F(x).at n=5A195010