a(n) = round(2*(3/2)^n), using round-to-even method.

Terms

a(0) =3a(1) =4a(2) =7a(3) =10a(4) =15a(5) =23a(6) =34a(7) =51a(8) =77a(9) =115a(10) =173a(11) =259a(12) =389a(13) =584a(14) =876a(15) =1314a(16) =1971a(17) =2956a(18) =4434a(19) =6651a(20) =9976a(21) =14964a(22) =22445a(23) =33668a(24) =50502a(25) =75754a(26) =113630a(27) =170445a(28) =255668a(29) =383502