a(n) = [ n/{n/e} ], {x} := x - [ x ].

Terms

a(0) =2a(1) =2a(2) =28a(3) =8a(4) =5a(5) =28a(6) =12a(7) =8a(8) =28a(9) =14a(10) =235a(11) =28a(12) =16a(13) =93a(14) =28a(15) =18a(16) =66a(17) =28a(18) =19a(19) =55a(20) =28a(21) =235a(22) =49a(23) =28a(24) =126a(25) =46a(26) =28a(27) =93a(28) =43a(29) =824