Positions of records in A306440.

Terms

a(0) =0a(1) =1a(2) =6a(3) =30a(4) =36a(5) =540a(6) =2100a(7) =3780a(8) =15120a(9) =37800a(10) =85680a(11) =120960a(12) =126000a(13) =131040a(14) =196560a(15) =302400a(16) =332640a(17) =786240a(18) =917280a(19) =1179360a(20) =2702700a(21) =3341520a(22) =4324320a(23) =8648640a(24) =19656000a(25) =19958400a(26) =21205800a(27) =43243200a(28) =46781280a(29) =57657600