Indices of records in A353693.

Terms

a(0) =1a(1) =6a(2) =15a(3) =30a(4) =70a(5) =105a(6) =210a(7) =462a(8) =770a(9) =1155a(10) =2145a(11) =2310a(12) =4290a(13) =6006a(14) =9282a(15) =10010a(16) =15015a(17) =23205a(18) =30030a(19) =46410a(20) =67830a(21) =72930a(22) =102102a(23) =149226a(24) =170170a(25) =248710a(26) =255255a(27) =373065a(28) =440895a(29) =510510