Number of partitions of { 1, 2, ..., 4n } into sets of size 4.

A025036

Number of partitions of { 1, 2, ..., 4n } into sets of size 4.

Terms

    a(0) =1a(1) =1a(2) =35a(3) =5775a(4) =2627625a(5) =2546168625

External references