Least k such that H(k) > n, where H(k) is the harmonic number Sum_{i=1..k} 1/i.

Terms

a(0) =1a(1) =2a(2) =4a(3) =11a(4) =31a(5) =83a(6) =227a(7) =616a(8) =1674a(9) =4550a(10) =12367a(11) =33617a(12) =91380a(13) =248397a(14) =675214a(15) =1835421a(16) =4989191a(17) =13562027a(18) =36865412a(19) =100210581a(20) =272400600a(21) =740461601a(22) =2012783315a(23) =5471312310a(24) =14872568831a(25) =40427833596a(26) =109894245429a(27) =298723530401a(28) =812014744422