a(n) = (11*n + 4)^3.

Terms

a(0) =64a(1) =3375a(2) =17576a(3) =50653a(4) =110592a(5) =205379a(6) =343000a(7) =531441a(8) =778688a(9) =1092727a(10) =1481544a(11) =1953125a(12) =2515456a(13) =3176523a(14) =3944312a(15) =4826809a(16) =5832000a(17) =6967871a(18) =8242408a(19) =9663597a(20) =11239424a(21) =12977875a(22) =14886936a(23) =16974593a(24) =19248832a(25) =21717639a(26) =24389000a(27) =27270901a(28) =30371328a(29) =33698267