Records in A235598.

Terms

a(0) =3a(1) =4a(2) =5a(3) =12a(4) =15a(5) =24a(6) =25a(7) =30a(8) =80a(9) =420a(10) =1860a(11) =146340a(12) =292680a(13) =3031080a(14) =6355440a(15) =202025100a(16) =404050200a(17) =674215920a(18) =1309133280a(19) =1759047480