Number of partitions of an n-set with exactly one even block.

A096579

Number of partitions of an n-set with exactly one even block.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =7a(4) =25a(5) =91a(6) =329a(7) =1415a(8) =6297a(9) =29431a(10) =151085a(11) =802099a(12) =4506957a(13) =26836083a(14) =165586321a(15) =1074740079a(16) =7268876881a(17) =50985776815a(18) =372854157589

External references