a(n) = T(n, floor(n/2)), T given by A026536.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =6a(6) =16a(7) =19a(8) =65a(9) =79a(10) =251a(11) =306a(12) =1016a(13) =1247a(14) =4117a(15) =5069a(16) =16913a(17) =20889a(18) =69865a(19) =86479a(20) =290455a(21) =360205a(22) =1212905a(23) =1506462a(24) =5085224a(25) =6324176a(26) =21389824a(27) =26630423a(28) =90226449a(29) =112439094