52390800

Appears in sequences

• Number of labeled rooted trees with a degree constraint: (2*n)!/(2^n) * C(2*n+1, n).at n=5A036770
• Denominators used in the computation of the column sequences of array A078739 ((2,2)-Stirling2).at n=11A089512
• a(n) = (n+1)*(2*n)!/2^n.at n=6A132911
• Number of permutations of 1..n with the sequence of sums of 6 adjacent elements having exactly 1 maximum.at n=7A179728