One more than positions of records in A249442.

Terms

a(0) =1a(1) =5a(2) =7a(3) =14a(4) =16a(5) =44a(6) =48a(7) =240a(8) =7200a(9) =16560a(10) =21600a(11) =33120a(12) =45360a(13) =60480a(14) =90720a(15) =1179360