Where records occur in A209252.

Terms

a(0) =0a(1) =11a(2) =13a(3) =101a(4) =107a(5) =177a(6) =357a(7) =1001a(8) =1011a(9) =10759a(10) =11487a(11) =42189a(12) =113183a(13) =344253a(14) =1851759a(15) =4787769a(16) =15848679a(17) =139367847a(18) =240889077a(19) =1167555543a(20) =111738007953