(Terms in A029627)/2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =12a(5) =1a(6) =1a(7) =24a(8) =1a(9) =1a(10) =154a(11) =98a(12) =40a(13) =1a(14) =252a(15) =138a(16) =1a(17) =567a(18) =390a(19) =60a(20) =1a(21) =957a(22) =1a(23) =2112a(24) =825a(25) =319a(26) =84a(27) =1a(28) =1144a(29) =403