Ratio A191650(n+1)/A191650(n).

Terms

a(0) =2a(1) =2a(2) =2a(3) =4a(4) =6a(5) =9a(6) =15a(7) =20a(8) =28a(9) =42a(10) =60a(11) =90a(12) =135a(13) =195a(14) =286a(15) =418a(16) =608a(17) =896a(18) =1316a(19) =1927a(20) =2829a(21) =4140a(22) =6060a(23) =8888a(24) =13024a(25) =19092a(26) =27993a(27) =41013a(28) =60102a(29) =88086