Number of set partitions of [n] such that the smallest element of each block is odd.

A290383

Number of set partitions of [n] such that the smallest element of each block is odd.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =8a(6) =17a(7) =56a(8) =151a(9) =584a(10) =1893a(11) =8360a(12) =31499a(13) =155720a(14) =666169a(15) =3633704a(16) =17351967a(17) =103284296a(18) =543441005a(19) =3499082408a(20) =20079329875a(21) =138860069192a(22) =861908850561

External references