246092

Appears in sequences

• Denominators of continued fraction convergents to sqrt(302).at n=15A041569
• Triangle read by rows: T(n,g) = number of general immersions of a circle with n crossings in a surface of arbitrary genus g (the circle is not oriented, the surface is oriented).at n=23A260848
• G.f.: A(x,y) = (1-y) * Sum_{n>=0} y^n * (1 + x*(1-y)^2)^(n^2).at n=42A303920
• G.f.: A(x,y) = (1-y) * Sum_{n>=0} y^n * (1 + x*(1-y)^2)^(n^2).at n=43A303920
• Main diagonal of triangle A303920: a(n) = A303920(n,n) for n>=0.at n=6A303921