Brilliant numbers (A078972) which are the sum of distinct double factorials (A006882).

Terms

a(0) =4a(1) =6a(2) =9a(3) =10a(4) =14a(5) =15a(6) =21a(7) =25a(8) =49a(9) =121a(10) =169a(11) =403a(12) =407a(13) =437a(14) =451a(15) =493a(16) =517a(17) =551a(18) =949a(19) =961a(20) =1003a(21) =1007a(22) =1067a(23) =1073a(24) =1079a(25) =1121a(26) =1333a(27) =1343a(28) =1349a(29) =1357