343772

Appears in sequences

• Triangle, read by rows, where the g.f. of row n divided by (1-x)^n yields the g.f. of column n in the triangle A122888, for n>=1.at n=64A122890
• Secondary diagonal of triangle A122890.at n=7A122892
• Triangle, read by rows n>=1, where row n is the n-th differences of column n of array A158825, where the g.f. of row n of A158825 is the n-th iteration of x*Catalan(x).at n=56A158830