a(n) = floor(n*log((14/11)*n^(10/9))).

Terms

a(0) =0a(1) =2a(2) =4a(3) =7a(4) =10a(5) =13a(6) =16a(7) =20a(8) =24a(9) =27a(10) =31a(11) =36a(12) =40a(13) =44a(14) =48a(15) =53a(16) =57a(17) =62a(18) =66a(19) =71a(20) =76a(21) =80a(22) =85a(23) =90a(24) =95a(25) =100a(26) =105a(27) =110a(28) =115a(29) =120