a(n) = round( (e/2)^n ).

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =3a(8) =5a(9) =6a(10) =9a(11) =12a(12) =16a(13) =22a(14) =29a(15) =40a(16) =54a(17) =73a(18) =100a(19) =136a(20) =184a(21) =250a(22) =340a(23) =463a(24) =629a(25) =855a(26) =1162a(27) =1579a(28) =2146a(29) =2917