Number of partitions of n-set into odd blocks.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =12a(6) =37a(7) =128a(8) =457a(9) =1872a(10) =8169a(11) =37600a(12) =188685a(13) =990784a(14) =5497741a(15) =32333824a(16) =197920145a(17) =1272660224a(18) =8541537105a(19) =59527313920a(20) =432381471509