Powers of cube root of 12 rounded up.

Terms

a(0) =1a(1) =3a(2) =6a(3) =12a(4) =28a(5) =63a(6) =144a(7) =330a(8) =755a(9) =1728a(10) =3957a(11) =9058a(12) =20736a(13) =47474a(14) =108688a(15) =248832a(16) =569684a(17) =1304249a(18) =2985984a(19) =6836197a(20) =15650984a(21) =35831808a(22) =82034362a(23) =187811805a(24) =429981696a(25) =984412343a(26) =2253741659a(27) =5159780352a(28) =11812948115a(29) =27044899908