276276

Appears in sequences

• Expansion of (1-4*x)^(15/2).at n=20A020927
• Structured truncated dodecahedral numbers.at n=25A100153
• Number T(n,k) of partitions of an n-set with distinct block sizes and maximal block size equal to k; triangle T(n,k), n>=0, ceiling((sqrt(1+8*n)-1)/2)<=k<=n, read by rows.at n=52A262072
• Number T(n,k) of partitions of an n-set with distinct block sizes and maximal block size equal to k; triangle T(n,k), k>=0, k<=n<=k*(k+1)/2, read by columns.at n=33A262078
• Triangular array read by row: T(m,n) = number of ways to obtain a single sphere by gluing the (labeled) sides of a (2m+1)-gon and a (2n+1)-gon, m >= n >= 0.at n=24A297897
• a(n) = (6*n)!*(4*n)!/((2*n)!*(3*n)!*(5*n)!).at n=4A304126
• Number x such that sigma(x) = Sum_{i=1..k} {sigma(x/p_i)}, where p_i are the k prime factors of x.at n=8A324711