Numbers k where the ratios A099378(k)/k reach a record value.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =36a(6) =144a(7) =576a(8) =900a(9) =3600a(10) =14400a(11) =32400a(12) =129600a(13) =435600a(14) =6969600a(15) =8643600a(16) =34574400a(17) =77792400a(18) =311169600a(19) =2498000400a(20) =2800526400a(21) =7779240000a(22) =9992001600a(23) =22482003600