a(n) = floor(1/frac(n*e)).

Terms

a(0) =1a(1) =2a(2) =6a(3) =1a(4) =1a(5) =3a(6) =35a(7) =1a(8) =2a(9) =5a(10) =1a(11) =1a(12) =2a(13) =17a(14) =1a(15) =2a(16) =4a(17) =1a(18) =1a(19) =2a(20) =11a(21) =1a(22) =1a(23) =4a(24) =1a(25) =1a(26) =2a(27) =8a(28) =1a(29) =1