Number of partitions of a 2*n-element set with exactly two odd blocks.

A096619

Number of partitions of a 2*n-element set with exactly two odd blocks.

Terms

    a(0) =1a(1) =10a(2) =136a(3) =2500a(4) =59671a(5) =1786060a(6) =65222431a(7) =2843052040a(8) =145349748316

External references