83860

Appears in sequences

• Augmentation of the Catalan triangle, A009766. See Comments.at n=49A193560
• Irregular triangular array T; row n shows the coefficients of the (n-1)-st polynomial in the obverse convolution s(x)**t(x), where s(x) = n^2 x and t(x) = x+1. See Comments.at n=25A375041