Records in A001917.

Terms

a(0) =1a(1) =2a(2) =6a(3) =8a(4) =18a(5) =24a(6) =31a(7) =38a(8) =72a(9) =105a(10) =129a(11) =630a(12) =1285a(13) =1542a(14) =2048a(15) =3112a(16) =3512a(17) =7710a(18) =7760a(19) =9728a(20) =27594a(21) =48834a(22) =60787a(23) =104694a(24) =140896a(25) =282224a(26) =384800a(27) =683720a(28) =1205998a(29) =1240672