2766499428domain: NAppears in sequencesRelated to sept-factorial numbers A045754.at n=6A034904A convolution triangle of numbers obtained from A034904.at n=21A132057a(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=6A195010