59507

Appears in sequences

• Number of parts in all partitions of all the numbers in {1,2,...,n} into distinct parts.at n=42A015724
• a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026692.at n=6A026994
• Number of pairs of integer partitions (y, v) of n such that there exists a pair of set partitions of {1,...,n} with meet {{1},...,{n}}, the first having block sizes y and the second v.at n=18A318396