444015

Appears in sequences

• Self-convolution 4th power of A001764, which enumerates ternary trees.at n=8A006629
• a(n) = 3*binomial(4*n,n)/(n+1).at n=7A007228
• Duplicate of A007228.at n=7A024497
• Denominators of continued fraction convergents to sqrt(888).at n=11A042717
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n-4)/2.at n=25A048065
• Triangle read by rows of numbers of paths in a lattice satisfying certain conditions.at n=53A071948
• Triangle read by rows: T(n,k) is the number of noncrossing trees with root degree equal to k.at n=46A092276
• Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges in which the maximum number of contiguous border edges starting from the root in counterclockwise direction is equal to k.at n=56A102593
• Inverse of Riordan array (1/(1-x), x/(1-x)^3), A109955.at n=46A109956
• Inverse of Riordan array (1,x(1-x)^2), A109970.at n=57A109971
• Interpolation of A001764(n+1) and A006629(n).at n=17A124817
• Array t(n,k) = binomial(n*k, n+1)/n, where n >= 1 and k >= 2, read by ascending antidiagonals.at n=38A241262