Least k such that Product_{i=1..k} (prime(i) + 1) >= n*Product_{i=1..k} prime(i).

Terms

a(0) =1a(1) =2a(2) =6a(3) =11a(4) =24a(5) =52a(6) =113a(7) =248a(8) =553a(9) =1245a(10) =2828a(11) =6481a(12) =14963a(13) =34770a(14) =81253a(15) =190836a(16) =450202a(17) =1066269a(18) =2534269a(19) =6042375a(20) =14447465a(21) =34632759a(22) =83212840a(23) =200360193a(24) =483361096a(25) =1168159015a(26) =2827750519