Numbers k that set records in A372720.

Terms

a(0) =1a(1) =2a(2) =6a(3) =12a(4) =30a(5) =60a(6) =120a(7) =210a(8) =420a(9) =840a(10) =1260a(11) =1680a(12) =2520a(13) =4620a(14) =9240a(15) =13860a(16) =18480a(17) =27720a(18) =32760a(19) =55440a(20) =65520a(21) =102960a(22) =110880a(23) =120120a(24) =180180a(25) =240240a(26) =360360a(27) =556920a(28) =720720a(29) =1081080